Speaker Johnson’s choice to lead by following the president goes against 200 years of House speakers building up the office’s power

Source: The Conversation – USA – By SoRelle Wyckoff Gaynor, Assistant Professor of Public Policy and Politics, University of Virginia

House Speaker Mike Johnson has given a lot of effort to pushing the agenda of President Donald Trump. Kevin Dietsch/Getty Images

When the framers of what became the U.S. Constitution set out to draft the rules of our government on a hot, humid day in the summer of 1787, debates over details raged on.

But one thing the men agreed on was the power of a new, representative legislative branch. Article I – the first one, after all – details the awesome responsibilities of the House of Representatives and the Senate: power to levy taxes, fund the government, declare war, impeach justices and presidents, and approve treaties, among many, many others.

In comparison, Article II, detailing the responsibilities of the president, and Article III, detailing the Supreme Court, are rather brief – further deferring to the preferred branch, Congress, for actual policymaking.

At the helm of this new legislative centerpiece, there was only one leadership requirement: The House of Representatives must select a speaker of the House.

The position, modeled after parliamentary leaders in the British House of Commons, was meant to act as a nonpartisan moderator and referee. The framers famously disliked political parties, and they knew the importance of building coalitions to solve the young nation’s vast policy problems.

But this idealistic vision for leadership quickly dissolved.

The current speaker of the House, Mike Johnson, a Republican from Louisiana, holds a position that has strayed dramatically from this nonpartisan vision. Today, the leadership role is far more than legislative manager – it is a powerful, party-centric position that controls nearly every aspect of House activity.

And while most speakers have used their tenure to strengthen the position and the power of Congress as a whole, Johnson’s choice to lead by following President Donald Trump drifts the position even further from the framers’ vision of congressional primacy.

A large room with many people sitting in semicircular rows.
The opening of the second session of the 59th Congress in 1906, with Speaker Joseph Cannon presiding.
Artist Frances Benjamin Johnston, Photo by Heritage Art/Heritage Images via Getty Images

Centralizing power

By the early 1800s, Speaker of the House Henry Clay, first elected speaker in 1810 as a member of the Whig Party, used the position to pursue personal policy goals, most notably entry into the War of 1812 against Great Britain.

Speaker Thomas Reed continued this trend by enacting powerful procedures in 1890 that allowed his Republican majority party to steamroll opposition in the legislative process.

In 1899, Speaker David Henderson created a Republican “cabinet” of new chamber positions that directly answered to – and owed their newly elevated positions to – him.

In the 20th century, in an attempt to further control the legislation Congress considered, reformers solidified the speaker’s power over procedure and party. Speaker Joseph Cannon, a Republican who ascended to the position in 1903, commandeered the powerful Rules Committee, which allowed speakers to control not only which legislation received a vote but even the amending and voting process.

At the other end of the 20th century was an effort to retool the position into a fully partisan role. After being elected speaker in 1995, Republican Newt Gingrich expanded the responsibilities of the office beyond handling legislation by centralizing resources in the office of the speaker. Gingrich grew the size of leadership staff – and prevented policy caucuses from hiring their own. He controlled the flow of information from committee chairs to rank-and-file members, and even directed access to congressional activity by C-SPAN, the public service broadcaster that provides coverage of Congress.

As a result, the modern speaker of the House now plays a powerful role in the development and passage of legislation – a dynamic that scholars refer to as the “centralization” of Congress.

Part of this is out of necessity: The House in particular, with 435 members, requires someone to, well, lead. And as America has grown in population, economic power and the size of government, the policy problems Congress tackles have become more complex, making this job all the more important.

But the position that began as coalition-building has evolved into controlling the floor schedule and flow of information and coordinating and commandeering committee work. My work on Congress has also documented how leaders invoke their power to dictate constituent communication for members of their party and use campaign finance donations to bolster party loyalty.

This centralization has cemented the responsibilities of the speaker within the chamber. More importantly, it has elevated the speaker to a national party figure.

Major legislation passed

Some successful leaders have been able to translate these advantages to pass major party priorities: Speaker Sam Rayburn, a Democrat from Texas, began his tenure in 1940 and was the longest-serving speaker of the House, ultimately working with eight different presidents.

Under Rayburn’s leadership, Congress passed incredible projects, including the Marshall Plan to fund recovery and reconstruction in postwar Western Europe, and legislation to develop and construct the Interstate Highway System.

In the modern era, Speaker Nancy Pelosi, a Democrat and the first and only female speaker, began her tenure in 2007 and held together a diverse Democratic coalition to pass the Affordable Care Act into law.

But as the role of speaker has become one of proactive party leader, rather than passive chamber manager, not all speakers have been able to keep their party happy.

Two men at a desk, speaking, with an American flag hung behind them.
Republican Minority Leader Joseph William Martin Jr., left, and Democratic Speaker of the House Sam Rayburn confer on the House rostrum in January 1956.
PhotoQuest/Getty Images

Protecting Congress’ power

John Boehner, a Republican who became speaker in 2011, was known for his procedural expertise and diplomatic skills. But he ultimately resigned after he relied on a bipartisan coalition to end a government shutdown in 2014 and avert financial crises, causing his support among his party to plummet.

Speaker Kevin McCarthy was ousted in 2023 from the position by his own Republican Party after working with Democratic members to fund the government and maintain Congress’ power of the purse.

Although these decisions angered the party, they symbolized the enduring nature of the position’s intention: the protector of Article I powers. Speakers have used their growing array of policy acumen, procedural advantages and congressional resources to navigate the chamber through immense policy challenges, reinforcing Article I responsibilities – from levying taxes to reforming major programs that affect every American – that other branches simply could not ignore.

In short, a strengthened party leader has often strengthened Congress as a whole.

Although Johnson, the current speaker, inherited one of the most well-resourced speaker offices in U.S. history, he faces a dilemma in his position: solving enormous national policy challenges while managing an unruly party bound by loyalty to a leader outside of the chamber.

Johnson’s recent decision to keep Congress out of session for eight weeks during the entirety of the government shutdown indicates a balance of deference tilted toward party over the responsibilities of a powerful Congress.

This eight-week absence severely weakened the chamber. Not being in session meant no committee meetings, and thus, no oversight; no appropriations bills passed, and thus, more deference to executive-branch funding decisions; and no policy debates or formal declarations of war, and thus, domestic and foreign policy alike being determined by unelected bureaucrats and appointed judges.

Unfortunately for frustrated House members and their constituents, beyond new leadership, there is little recourse.

While the gradual, powerful concentration of authority has made the speaker’s office more responsive to party and national demands alike, it has also left the chamber dependent on the speaker to safeguard the power of the People’s House.

The Conversation

SoRelle Wyckoff Gaynor does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Speaker Johnson’s choice to lead by following the president goes against 200 years of House speakers building up the office’s power – https://theconversation.com/speaker-johnsons-choice-to-lead-by-following-the-president-goes-against-200-years-of-house-speakers-building-up-the-offices-power-270440

Stalin’s postwar terror targeted Soviet Jews – in the name of ‘anti-cosmopolitanism’

Source: The Conversation – USA (3) – By Wendy Z. Goldman, Professor of History, Carnegie Mellon University

A plaque in Russia commemorates the Jewish Anti-Fascist Committee, whose leaders were executed in August 1952. Adam Baker/Flickr via Wikimedia Commons, CC BY

Many Americans know of Josef Stalin’s Terror of the late 1930s, during which more than 1 million people were arrested for political crimes, and over 680,000 executed.

Fewer know about the repressions that began after World War II and ended with Stalin’s death in 1953. Much like the repressions of the 1930s, they involved fabricated plots, arrests, coerced confessions and purges. Unlike the Terror of the 1930s, they were accompanied by a wave of state-sponsored antisemitism – including the purge of Jews from multiple occupations and unwritten quotas that limited their professional and educational opportunities.

The abolition of the Jewish Anti-Fascist Committee on Nov. 20, 1948, and the arrest and execution of its members was central to this postwar assault. The committee’s elimination was accompanied by an “anti-cosmopolitan” campaign emphasizing Russian nationalism, Soviet patriotism and anti-Westernism. In certain ways, the campaign served as the mirror image of anti-communist and jingoistic propaganda in the United States at the time.

“Rootless cosmopolitan” became code for “Jewish,” and dismissals swept the arts, sciences and media. The Ministry of State Security arrested Jewish industrial leaders for sabotage and, in 1953, fabricated “the Doctor’s Plot,” which accused a group of predominately Jewish doctors who treated Kremlin officials of trying to assassinate Stalin and other party leaders.

Two side-by-side police images show a dark-haired man in a white shirt and dark suit jacket.
Peretz Markish, one of many Jewish artists and leaders persecuted in the ‘anti-cosmopolitan’ campaign, was executed on the ‘Night of the Murdered Poets.’
Central Archive of the Federal Security Service of the Russian Federation (Moscow) via Wikimedia Commons

The very idea of an antisemitic campaign following the massive Soviet losses in World War II presents an enigma. Of the 6 million Jews murdered in the Holocaust, almost 2 million were murdered by the Nazis on Soviet soil. Why would Soviet leaders, who fought a bitter and costly war to defeat fascism, choose to attack the very group that the Nazis tried to annihilate?

My forthcoming book, “Stalin’s Final Terror: Antisemitism, Nationality Policy, and the Jewish Experience,” addresses this difficult question.

Clashing with the state

The Soviet state created the Jewish Anti-Fascist Committee in 1942 to aid the war effort at home and abroad. Its chairman, Solomon Mikhoels, was a renowned Yiddish actor and director of the State Yiddish Theater – one of the many cultural and scientific luminaries who led the committee.

The committee made an enormous contribution to the war effort, sending thousands of articles about fascism, the Jewish war experience and the Red Army for publication in the foreign press. Mikhoels and writer Itsik Fefer toured the United States, Mexico, Canada and Great Britain, where they were welcomed by rapturous crowds and raised millions of dollars.

In 1943, as the Red Army began liberating Soviet territories from German occupation, the committee was inundated by letters from surviving and returning Jews. Committee leaders tried to help people reclaim their homes, to distribute foreign aid and to identify and commemorate sites of Nazi war crimes. They wrote to Stalin suggesting the creation of a Jewish national republic in Crimea to replace destroyed communities in Ukraine, Belorussia and Russia.

Two balding men in suits flank an older man with white hair in a sweater.
Jewish Anti-Fascist Committee members Itsik Fefer, left, and Solomon Mikhoels, right, speak with Albert Einstein during their international tour.
Mondadori Publishers/Getty Images via Wikimedia Commons

But the state deemed these unsanctioned activities expressions of “bourgeois Jewish nationalism.” Some Communist Party leaders even insinuated that the Jewish Anti-Fascist Committee was being used by spies, and advocated its elimination.

The minister of state security, V.S. Abakumov, convinced Stalin that Mikhoels was spying for Jewish organizations in the United States, but Mikhoels was too well known at home and abroad to be arrested. In January 1948, Mikhoels was lured to a house on the outskirts of Minsk, crushed by a truck and dumped on a deserted road.

The murder, disguised as an accident, signaled a turning point in the government’s policy toward Soviet Jews. In November 1948, the government abolished the committee as “a center of anti-Soviet propaganda.” Fifteen of its leaders were arrested over the following months. The state shuttered the Yiddish publishing house, press, theaters, literary journals and writers association, and arrested hundreds of Yiddish cultural figures.

Unbowed in court

The Jewish Anti-Fascist Committee’s leaders were charged with bourgeois nationalism, treason and espionage. Tortured in prison and kept in cramped, freezing cells, they were forced to confess.

The Ministry of State Security hoped to stage a public show trial, but as soon as the physical coercion stopped, the defendants began to retract their confessions and write letters of protest. The evidence was based on these extracted confessions, and the state feared an international outcry.

After the group had already spent more than two years in prison, the case was reopened. M.D. Riumin, the new head of the investigatory unit, was intent on showing that the defendants directed Jewish nationalist organizations that infiltrated the government at every level. After new interrogations, an indictment was drawn up, sent to Stalin and approved by the Politburo.

A secret trial began in May 1952. Despite being physically broken, the defendants presented a powerful rebuttal.

brandstaetter images/Hulton Archive/Imagno/Getty Images
Solomon Lozovskii, pictured here in the 1930s, had led the Red International of Labor Unions.
brandstaetter images/Hulton Archive/Imagno/Getty Images

Solomon Lozovskii, an old revolutionary and former deputy foreign minister, shredded the state’s accusations. Historian Iosif Iuzefovich retracted his confession and told the court that after numerous beatings, “I was ready to confess that I was the pope’s own nephew, acting on his direct personal orders.” Boris Shimeliovich, the director of a leading Moscow hospital, testified that he had received over 2,000 blows to his buttocks and heels. Even the chairman of the court began to doubt the charges.

Yet the defendants were convicted. Thirteen of the 15 were executed on Aug. 12, 1952. The executions were later commemorated as “The Night of the Murdered Poets, though only five of the victims were poets. Solomon Bregman, a labor leader, died in prison; Lina Shtern, a renowned scientist, was sentenced to exile.

After Stalin’s death, the defendants were exonerated. The case only became public, however, in 1988, when the country began a full reckoning with the Stalin era.

A black-and-white photo of a woman standing in front of a lecture room.
Lina Shtern, shown here in the 1930s, was well known for her scientific research on the blood-brain barrier.
Dephot/ullstein bild via Getty Images

The final Terror

How do we explain this final Terror?

Jews had benefited enormously from the revolution in 1917, which eliminated czarist oppression, granted them equal rights and opened new educational and employment opportunities. They entered professions and held leading posts in the Communist Party. They were considered an official nationality, like Ukrainians, Uzbeks, Armenians and hundreds of other groups in the new Union of Soviet Socialist Republics.

Yet after the war, the Jewish Anti-Fascist Committee’s efforts to help Jewish survivors and commemorate the Holocaust were not acceptable to the state, which minimized the singularity of Jewish wartime experiences. The government identified advocacy solely on behalf of Jews, either at home or abroad, as “bourgeois nationalism” or Zionism.

Amid the intensifying Cold War, the government sought to mobilize popular support by resurrecting Russian nationalism, once an anathema to socialist revolutionaries. It reestablished many czarist discriminatory policies, creating obstacles to Jewish advancement and education. Despite the government’s initial support for the new state of Israel, it blocked the Jewish Anti-Fascist Committee from participating in Jewish international organizations, which it viewed as a conduit for Western spies and Jewish nationalism.

Some historians believe that Stalin was preparing a larger Terror, including the deportation of the Jewish population, but his plans were disrupted by his death in 1953. Others disagree, asserting a lack of evidence.

Yet one point is worth pondering: Using the Jewish Anti-Fascist Committee, Riumin aimed to build a larger case that would have targeted Jews in every institution for treason. He never succeeded, however, in staging a public trial or launching a wider hunt for enemies throughout the government.

The courage of the defendants thwarted Riumin’s venomous ambition. They testified bravely about their abuse and exposed the falsity of the charges. Revolutionaries committed to the struggle against fascism, they held firm to the end.

The Conversation

I have in the past received funding from the Guggenheim Foundation, the Mellon Foundation, the National Council for Eurasian and East European Research, the ACLS, and the National Endowment for the Humanities. I am not currently receiving funding from any external organization.

ref. Stalin’s postwar terror targeted Soviet Jews – in the name of ‘anti-cosmopolitanism’ – https://theconversation.com/stalins-postwar-terror-targeted-soviet-jews-in-the-name-of-anti-cosmopolitanism-265562

Iran’s president calls for moving its drought-stricken capital amid a worsening water crisis – how Tehran got into water bankruptcy

Source: The Conversation – USA (2) – By Ali Mirchi, Associate Professor of Water Resources Engineering, Oklahoma State University

Iranians pray for rain in Tehran on Nov. 14, 2025. The city is experiencing its worst drought in decades. Fatemeh Bahrami/Anadolu via Getty Images

Fall marks the start of Iran’s rainy season, but large parts of the country have barely seen a drop as the nation faces one of its worst droughts in decades. Several key reservoirs are nearly dry, and Tehran, the nation’s capital, is facing an impending “Day Zero” – when the city runs out of water.

The situation is so dire, Iranian President Masoud Pezeshkian has revived a long-debated plan to move the capital from this metro area of 15 million people.

Previous administrations have floated the idea of moving the capital but never implemented it. Tehran’s unbridled expansion has created a host of problems, ranging from chronic water stress and land subsidence to gridlocked traffic and severe air pollution, while also heightening concerns about the city’s vulnerability to major seismic hazards.

A man gestures while surrounded by other people and speaks into a microphone.
Iranian President Masoud Pezeshkian, shown in January 2025, says moving the capital is now a necessity.
Iranian Presidency/AFP via Getty Images

This time, Pezeshkian has framed relocation as a mandate, not a choice. He warned in November 2025 that if nothing changes, the city could become uninhabitable.

How Iran got to the point of water bankruptcy

Drought has been a concern in this part of the world for millennia. A prayer by the Persian King Darius the Great that was carved in stone more than 2,000 years ago asked his god to protect the land from invaders, famine and lies.

However, today, Iran’s escalating water and environmental problems are the predictable outcome of decades of treating the region’s finite water resources as if they were limitless.

Iran has relied heavily on water-intensive irrigation to grow food in dry landscapes and subsidized water and energy use, resulting in overpumping from aquifers and falling groundwater supplies. The concentration of economic activity and employment in major urban centers, particularly Tehran, has also catalyzed massive migration, further straining already overstretched water resources.

Those and other forces have driven Iran toward “water bankruptcy” – the point where water demand permanently exceeds the supply and nature can’t keep up.

Four people walk next to a bridge across dry ground where a river normally runs.
People walk across the dried-up Zayandeh Rud riverbed in the historic city of Isfahan, Iran, in February 2025.
Morteza Nikoubazl/NurPhoto via Getty Images

Iran’s centralized, top-down approach to water governance has proven ineffective in ensuring the sustainability of its water resources and in maintaining a balance between renewable water supply and demand, a gap that has continued to widen.

Since the 1979 revolution, Iran has pursued an aggressive hydraulic mission, building dams and diverting rivers to support sprawling cities and expanding irrigated agriculture. Driven by ideological ambitions, the country’s focus on food self-sufficiency together with international sanctions and economic isolation, have taken a heavy toll on the nation’s environment, particularly its water resources. Drying lakes, groundwater depletion and rising salinity are now prevalent across Iran, reflecting dire water security risks throughout the country.

As water resource and environmental engineers and scientists, including a former deputy head of Iran’s Department of Environment, we have followed the county’s water challenges for years. We see viable solutions to its chronic water problems, though none is simple.

Falling water reserves leave Iran vulnerable

Experts have been warning for years that the lack of foresight to tackle Iran’s water bankruptcy problem leaves the country increasingly vulnerable to extreme climate conditions.

Iranians are again seeing those risks in this latest drought.

Precipitation has been well below normal in four of the water years since 2020. That has contributed to a sharp decline in reservoir levels. Fall 2025 has been the hottest and driest fall on record for Tehran since 1979, testing the resilience of its water system.

The city faces mounting stress on already diminished groundwater reserves, with little relief in sight without significant rainfall.

Shrinking snowpack and shifting rainfall patterns make it harder to predict how much water will flow in rivers and when. Rising temperatures make the problem worse by boosting demand and leaving less water in the rivers.

There is no quick fix to resolve Tehran’s water emergency. In the near term, only significantly more rainfall and a reduction in consumption can offer respite.

Panicky moves to increase interbasin water transfers, such as the Taleqan‑to‑Tehran water transfer to pump water from the Taleqan Dam, over 100 miles (166 km) away, are not only inadequate, they risk worsening the water supply and demand imbalance in the long run. Iran has already experimented with piping water between basins, and those transfers have in many cases fueled unsustainable growth rather than real conservation, worsening water problems both in the donor and recipient basins.

The equivalent of bathtub rings show how low the water has dropped in this reservoir.
The exposed shoreline at Latyan Dam shows significantly low water levels near Tehran on Nov. 10, 2025. The reservoir, which supplies part of the capital’s drinking water, has seen a sharp decline due to prolonged drought and rising demand in the region.
Bahram/Middle East Images/AFP via Getty Images

At its core, Tehran’s predicament stems from a chronic mismatch between supply and demand, driven by rapid population growth.

Whether relocating the political capital, as suggested by Pezeshkian, could meaningfully reduce the city’s population, and hence the water demand, is highly doubtful.

The sparsely populated Makran region in the country’s southeast, along the Gulf of Oman, has been mentioned as a potential option, touted as a “lost paradise,” though details on how much of the city or population would move remain unclear.

Meanwhile, other major Iranian cities are facing similar water stresses, highlighting the fact that this is a nationwide threat.

Water solutions for a dry country

The country needs to start to decouple its economy from water consumption by investing in sectors that generate value and employment opportunities with minimal water use.

A farmer stands on a narrow strip of earth with flooded rice fields on either side. Mountains are in the distance.
The Kamfiruz area grows rice by flooding fields. It’s also facing water shortages.
Hiroon/Middle East Images/AFP via Getty Images

Agricultural water consumption can be reduced by producing higher-value, less water-intensive crops, taking into account food security, labor market and cultural considerations. Any water savings could be used to replenish groundwater.

Becoming more open to global trade and importing water-intensive crops, rather than growing them, would also allow Iran to use its limited agricultural land and water to grow a smaller set of strategic staple crops that are critical for national food security.

That’s a transition that will be possible only if the country moves toward a more diversified economy that allows for reduced pressure on the country’s finite resources, an option that seems unrealistic under economic and international isolation.

Kaveh Madani discusses the drought stress Iran is facing.

Urban water demand could be reduced by strengthening public education on conservation, restricting high-consuming uses such as filling private swimming pools, and upgrading distribution infrastructure to minimize leaks.

Treated wastewater could be further recycled for both drinking and nonpotable purposes, including maintaining river flows, which are currently not prioritized.

Where feasible, other solutions such as flood management for aquifer recharge, and inland groundwater desalination, can be explored to supplement supplies while minimizing environmental harm.

Taken together, these measures require bold, coordinated action rather than piecemeal responses.

Renewed talk of relocating the capital signals how environmental stresses are adding to the complex puzzle of Iran’s national security concerns. However, without addressing the root causes of the nation’s water bankruptcy, we believe moving the capital to ease water problems will be futile.

The Conversation

Nothing to disclose.

Mojtaba Sadegh receives funding from the US National Science Foundation, NASA, and the Joint Fire Science Program.

Amir AghaKouchak and Kaveh Madani do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

ref. Iran’s president calls for moving its drought-stricken capital amid a worsening water crisis – how Tehran got into water bankruptcy – https://theconversation.com/irans-president-calls-for-moving-its-drought-stricken-capital-amid-a-worsening-water-crisis-how-tehran-got-into-water-bankruptcy-270456

When the world’s largest battery power plant caught fire, toxic metals rained down – wetlands captured the fallout

Source: The Conversation – USA (2) – By Ivano W. Aiello, Professor of Marine Geology, San José State University

A battery energy storage facility that was built inside an old power plant burned from Jan. 16-18, 2025. Mike Takaki

When fire broke out at the world’s largest battery energy storage facility in January 2025, its thick smoke blanketed surrounding wetlands, farms and nearby communities on the central California coast.

Highways closed, residents evacuated and firefighters could do little but watch as debris and ash rained down. People living in the area reported headaches and respiratory problems, and some pets and livestock fell ill.

Two days later, officials announced that the air quality met federal safety standards. But the initial all-clear decision missed something important – heavy metal fallout on the ground.

A large charred piece of material with a putty knife to show the size.
A chunk of charred battery debris found near bird tracks in the mud, with a putty knife to show the size. The surrounding marshes are popular stopovers for migrating seabirds. Scientists found a thin layer of much smaller debris across the wetlands.
Ivano Aiello, et al, 2025

When battery energy storage facilities burn, the makeup of the chemical fallout can be a mystery for surrounding communities. Yet, these batteries often contain metals that are toxic to humans and wildlife.

The smoke plume from the fire in Vistra’s battery energy storage facility at Moss Landing released not just hazardous gases such as hydrogen fluoride but also soot and charred fragments of burned batteries that landed for miles around.

I am a marine geologist who has been tracking soil changes in marshes adjacent to the Vistra facility for over a decade as part of a wetland-restoration project. In a new study published in the journal Scientific Reports, my colleagues and I were able to show through detailed before-and-after samples from the marshes what was in the battery fire’s debris and what happened to the heavy metals.

The batteries’ metal fragments, often too tiny to see with the naked eye, didn’t disappear. They continue to be remobilized in the environment today.

A satellite image of the area where the fire was, surrounded by farm fields and marshes.
The Vistra battery energy storage facility – the large gray building in the lower left, near Monterey Bay – is surrounded by farmland and marshes. The smoke plume from the fire rained ash on the area and reached four counties.
Google Earth, with data from Google, Airbus, MBARI, CSUMB, CC BY

What’s inside the batteries

Moss Landing, at the edge of Monterey Bay, has long been shaped by industry – a mix of power generation and intensive agriculture on the edge of a delicate coastal ecosystem.

The Vistra battery storage facility rose on the site of an old Duke Energy and PG&E gas power plant, which was once filled with turbines and oil tanks. When Vistra announced it was converting the site into the world’s largest lithium-ion battery facility, the plan was hailed as a clean energy milestone. Phase 1 alone housed batteries with 300 megawatts of capacity, enough to power about 225,000 homes for four hours.

The energy in rechargeable batteries comes from the flow of electrons released by lithium atoms in the anode moving toward the cathode.

In the type of batteries at the Moss Landing facility, the cathode was rich in three metals: nickel, manganese and cobalt. These batteries are prized for their high energy density and relatively low cost, but they are also prone to thermal runaway.

Lab experiments have shown that burning batteries can eject metal particles like confetti.

Metals found in wetlands matched batteries

When my team and I returned to the marsh three days after the fire, ash and burned debris covered the ground. Weeks afterward, charred fragments still clung to the vegetation.

Our measurements with portable X-ray fluorescence showed sharp increases in nickel, manganese and cobalt compared with data from before the fire. As soon as we saw the numbers, we alerted officials in four counties about the risk.

We estimate that about 25 metric tons (55,000 pounds) of heavy metals were deposited across roughly half a square mile (1.2 square kilometers) of wetland around Elkorn Slough, and that was only part of the area that saw fallout.

To put this in perspective, the part of the Vistra battery facility that burned was hosting 300 megawatts of batteries, which equates to roughly 1,900 metric tons of cathode material. Estimates of the amount of batteries that burned range from 55% to 80%. Based on those estimates, roughly 1,000 to 1,400 metric tons of cathode material could have been carried into the smoke plume. What we found in the marsh represents about 2% of what may have been released.

Three series of maps of the area showing change in quantities of the three metals.
These contour maps show how metals from the Moss Landing battery fire settled across nearby wetlands. Each color represents how much of a metal – nickel, manganese or cobalt – was found in surface soils. Darker colors mean higher concentrations. The highest levels were measured about two weeks after the fire, then declined as rain and tides dispersed the deposits.
Charlie Endris

We took samples at hundreds of locations and examined millimeter-thin soil slices with a scanning electron microscope. Those slices revealed metallic particles smaller than one-tenth the width of a human hair – small enough to travel long distances and lodge deep in the lungs.

The ratio of nickel to cobalt in these particles matched that of nickel, manganese and cobalt battery cathodes, clearly linking the contamination to the fire.

Over the following months, we found that surface concentrations of the metals dropped sharply after major rain and tidal events, but the metals did not disappear. They were remobilized. Some migrated to the main channel of the estuary and may have been flushed out into the ocean. Some of the metals that settled in the estuary could enter the food chain in this wildlife hot spot, often populated with sea otters, harbor seals, pelicans and herons.

A zoomed in look at a small lump on a leaf
A high-magnification image of a leaf of bristly oxtongue, seen under a scanning electron microscope, shows a tiny metal particle typically used in cathode material in lithium-ion batteries, a stark reminder that much of the fallout from the fire landed on vegetation and croplands. The image’s scale is in microns: 1 micron is 0.001 millimeters.
Ivano Aiello

Making battery storage safer as it expands

The fire at Moss Landing and its fallout hold lessons for other communities, first responders and the design of future lithium-ion battery systems, which are proliferating as utilities seek to balance renewable power and demand peaks.

When fires break out, emergency responders need to know what they’re dealing with. A California law passed after the fire helps address this by requiring strengthening containment and monitoring at large battery installations and meetings with local fire officials before new facilities open.

How lithium-ion batteries work, and why they can be prone to thermal runaway.

Newer lithium-ion batteries that use iron phosphate cathodes are also considered safer from fire risk. These are becoming more common for utility-scale energy storage than batteries with nickel, manganese and cobalt, though they store less energy.

How soil is tested is also important. At Moss Landing, some of the government’s sampling turned up low concentrations of the metals, likely because the samples came from broad, mixed layers that diluted the concentration of metals rather than the thin surface deposits where contaminants settled.

Continuing risks to marine life

Metals from the Moss Landing battery fire still linger in the region’s sediments and food webs.

These metals bioaccumulate, building up through the food chain: The metals in marsh soils can be taken up by worms and small invertebrates, which are eaten by fish, crabs or shorebirds, and eventually by top predators such as sea otters or harbor seals.

Our research group is now tracking the bioaccumulation in Elkhorn Slough’s shellfish, crabs and fish. Because uptake varies among species and seasons, the effect of the metals on ecosystems will take months or years to emerge.

The Conversation

Ivano Aiello receives funding from private donors.

ref. When the world’s largest battery power plant caught fire, toxic metals rained down – wetlands captured the fallout – https://theconversation.com/when-the-worlds-largest-battery-power-plant-caught-fire-toxic-metals-rained-down-wetlands-captured-the-fallout-268848

Rural high school students are more likely than city kids to get their diplomas, but they remain less likely to go to college

Source: The Conversation – USA (2) – By Sheneka Williams, Professor of Educational Administration, Michigan State University

A high school junior looks over a farm where he works in Perry, N.Y., in March 2025. Lauren Petracca/Associated Press

Many high school seniors are currently in the midst of the college application process or are already waiting to hear back from their selected schools.

For high school students in rural parts of the United States, the frantic pace of the college application process can look a bit different. For starters, some of these rural students might not have large numbers of elite universities and colleges coming to admissions fairs in their areas. They might not have all of the required high school courses to attend some of these schools, either, according to Sheneka Williams, a scholar of educational leadership and rural education who graduated from a small, rural high school in Alabama.

Amy Lieberman, the education editor at The Conversation U.S., spoke with Williams to understand the particular experiences of rural students – and what, exactly, coming from a rural background can mean as students think about college.

How are rural high school students’ experiences unique?

Nationally, nearly 10 million students – or 1 in 5 public school students in the U.S. – attended rural schools in the fall of 2022.

Research suggests that rural students finish or complete high school at a higher rate than urban students.

While approximately 90% of rural high school students graduated in 2020, 82% of urban high school students got their diplomas that year.

But rural students’ college entrance rate is lower than that of urban and suburban students.

Within four years of graduating high school, 71% of rural students attended college, compared to 73% of suburban and 71% of city students who also went to college, according to 2023 findings by the National Center for Education Statistics.

Why are rural students finishing high school at a higher rate than their suburban and urban peers but attending college at a lower rate?

First, we know that some colleges are not really recruiting students in rural areas. If these universities don’t know you exist, and if your parents haven’t gone to college and don’t know how the admission system works, you might not have help as you move closer to attending college. Some rural schools also do not have college counselors.

There are other reasons why some rural high school graduates are not going to college, I have personally seen. Some students are apprehensive about leaving home. They have close-knit families and communities, and they might be wondering where they fit in at a school in a large place that is much bigger than where they grew up.

A group of young people wear red shirts and hold musical instruments, including trumpets, as they walk in the street on a blue-sky day.
Students in the West Bolivar High School marching band take part in the McEvans School homecoming parade in Shaw, Miss., in September 2022.
Rory Doyle for The Washington Post via Getty Images

Do any of these scenarios describe your own educational journey?

I grew up in a small town in Alabama and was different from some of the other Black students, since I came from a family of educators who had gone to college for two generations.

But when I did go to college, I went to a campus that was two times the size of my hometown, which has a population of just 12,000. It takes a confident student, as well as encouragement from parents or mentors, to believe that you can go to school away from home.

We had some college fairs in high school, but the visiting colleges were state universities and regional schools. You did not have selective schools coming to recruit.

Students today can learn about schools online, but there is still the issue that universities are not, on their own, connecting enough with rural students.

Do rural students fit into universities’ diversity goals?

Only recently have people begun to think and talk more about what rural really means. Some people use the U.S. Census Bureau’s definition of rural, which is “all population, housing, and territory not included within an urban area.”

But that’s a somewhat surface definition. It’s hard for some scholars to agree on what counts as rural, including me. It feels like something you have to experience and know, and that is hard to define. Part of the issue is that rural has been defined by what urban is not, and that makes it seem it doesn’t deserve its own definition.

Universities are beginning to think about these rural students more and the particular challenges they experience in school. That includes not necessarily having stable access to high-speed internet, which approximately 22.3% of Americans in rural areas and 27.7% of Americans in tribal areas don’t have, compared to only 1.5% of Americans in urban areas.

Another issue is that even for rural students who want to go to college, they might not have the right qualifications, such as certain courses they have completed.

I am currently involved in research with sociologists Barbara Schneider and education scholars Joe Krajcik and Clausell Mathis about how some rural high schools in Alabama and Mississippi aren’t able to teach physics or chemistry. Physics and chemistry are both gateway courses to college, and if you want to be an engineer or STEM major, you have to complete these courses in order to have a shot at certain colleges.

Rural high schools tend to have a lack of resources, in terms of both budget and their staffing. Schools not being able to find teachers who are qualified or certified in certain subject areas, such as science courses, is a nationwide problem. But this issue is tougher in smaller, rural towns.

Schools will say they don’t have students interested in those subjects. But the states also aren’t requiring that these classes are offered.

This lack of science course offerings can create a whole block of students who are not going to college. And if we are talking about the South, in particular, and states that have a high population of Black students in rural areas, we are talking about a whole swath of students who don’t have this education and would find it a struggle to get into larger, splashier schools that are not near home.

A scoreboard and old-looking building are seen in a brown field.
High school students in rural areas might not have access to the same classes or technology that peers in suburban and urban areas do.
iStock/Getty Images Plus

What do you think are some of the solutions to these challenges?

There are many local efforts to offer tutoring and things of that nature for rural high school students. Some of those efforts have been blunted because schools are funded by property taxes, and some of them just don’t have the revenue to pay for these add-ons without federal support.

I think colleges need to do a better job of recruiting students at rural high schools. I also think that once these students make it to college, it would help if there were support or affinity groups.

Some colleges have not thought enough about rural students. I think the narrative around rural students and college needs to shift – these students may want to go to college, but nobody is looking for them. When you live in small, geographically isolated places, sometimes you only know what you see.

The Conversation

Sheneka Williams receives funding from the U.S. Department of Education.

ref. Rural high school students are more likely than city kids to get their diplomas, but they remain less likely to go to college – https://theconversation.com/rural-high-school-students-are-more-likely-than-city-kids-to-get-their-diplomas-but-they-remain-less-likely-to-go-to-college-269246

New York’s wealthy warn of a tax exodus after Mamdani’s win – but the data says otherwise

Source: The Conversation – USA (2) – By Cristobal Young, Associate Professor of Sociology, Cornell University

Wealthy New Yorkers have threatened to leave the city if Mayor-elect Zohran Mamdani follows through on his promise to raise taxes on the rich. Charly Triballeau/AFP via Getty Images

New York’s mayor-elect, Zohran Mamdani, campaigned on a promise to raise the city’s income tax on its richest residents from 3.9% to 5.9%. Combined with the state income tax, which is 10.9% for the top bracket, the increase would cement the city’s position as having the highest taxes on top earners in the country.

It set off a chorus of warnings about the tax flight of the city’s wealthiest residents.

Hedge fund billionaire Bill Ackman claimed that both the city’s businesses and wealthy residents “have already started making arrangements for the exits.”

New York Gov. Kathy Hochul echoed the concern, opposing the proposal “because we cannot have them leave the state.” Before the election, Mamdani’s opponent, former New York governor Andrew Cuomo, joked that if Mamdani won, “even I will move to Florida.”

I research whether high earners actually move when their taxes go up. My colleagues and I have analyzed millionaire taxes in New Jersey and California, the migration of Forbes billionaires globally and decades of IRS data tracing where Americans with million-dollar incomes live.

Top earners are often thought of as “mobile millionaires” who are ever searching for lower-tax places to live. In reality, they’re often reluctant to leave the places where they built their careers and raised their families.

At the same time, there are grains of truth in the tax migration arguments, so it’s important to carefully parse the evidence.

A small fraction of a small fraction

The first fact is simple: Millionaires have low migration rates.

Mobility in America is highest among people who are still searching for their economic place in life. Workers who earn the lowest wages move across state lines at relatively high rates, about 4.5% per year, often in search of more affordable housing. People making $1 million-plus a year move only half as often: Just 2.4% of them pack up each year.

When millionaires do move, it rarely appears to be for tax reasons. For example, Florida is the top destination for New York movers in general. But among the richest 1% of New Yorkers, the top destination is Connecticut, followed by New Jersey and California, all three of which levy a millionaire tax.

Some millionaires certainly do favor lower-tax destinations. But many moves to low-tax states are offset by moves in the opposite direction to higher-tax states, and many other moves take place between states that have the same tax rate.

Overall, only about 15% of millionaires who move end up with a lower tax bill. That shows the rich are willing and able to move for tax reasons. But because only about 2.4% of millionaires move each year – and only a fraction of those moves reduce their taxes – overall tax migration ends up being a small fraction of a small fraction. Not never, but not often.

Some benefits don’t have a dollar sign

Migration is mostly a young person’s game.

The most mobile Americans are recent college graduates who are brimming with potential, searching for work and unburdened by major responsibilities. Their rate of migration from one state to another is over 12%, more than four times the rate of millionaires.

The typical adult mover is about 30 years old, while the highest income earners are typically about 50. People choose where to build their careers and families decades before they reach their peak earnings phase.

By the time someone earns enough to be taxed in the highest brackets, they’re usually late into their careers. They are almost always married, often have children at home, own their homes and, in many cases, own a business. Their social lives and their economic success are linked to local networks of colleagues, clients and connections built up over a long career. Moving away from those networks means giving up a great deal of social capital and starting over somewhere new.

Top earners know that some states have lower taxes, but for most, tax flight is simply a bad deal. The social and economic costs of uprooting are bigger than the tax savings.

When your social world collapses

Two recent events showed why the rich generally stay where they are – and what it takes to move them.

The first was the Tax Cuts and Jobs Act, which President Donald Trump signed into law in late 2017. The tax reform package capped the federal deduction for state and local taxes and raised taxes on high earners in states like New York, New Jersey and California. In a Wall Street Journal op-ed titled “So Long, California. Sayonara, New York,” economists Arthur Laffer and Stephen Moore predicted that 800,000 people a year would flee those states.

They didn’t. A colleague and I studied every millionaire tax return in the country for two years before and after the reform. Nothing happened. There was no increase in migration out of the states where tax burdens rose. The predicted exodus simply did not occur.

We were about to wrap up the study and call it case closed. Then something unexpected did happen: In early 2020, millionaires began leaving high-tax states in large numbers. Low-tax states saw no comparable outflows. The pattern matched those tax-flight predictions from just a few years earlier.

It was the COVID-19 pandemic, and it brought a profound shock to the social lives of city residents.

Offices emptied out, with entry swipes in major cities dropping by nearly 90%. Time spent at work fell sharply, local amenities were shuttered, and time spent alone grew as in-person contact became a health risk. K–12 schools closed, disrupting children’s relationships with teachers and classmates.

A normally busy city street featuring just a couple of pedestrians.
The COVID-19 pandemic briefly turned downtowns into ghost towns.
Spencer Platt/Getty Images

For many households, this was also a strange form of freedom, and a chance to rethink the geography of work and life, especially for top earners who could work remotely from anywhere. Disconnected from the bonds of place, top earners moved and clearly favored low-tax destinations.

The lesson is that social lives and economic policies are deeply intertwined. The 2017 tax reform had no effect on migration because the social cost of moving is high – especially for people at the peak of their careers who are enjoying the many social benefits of economic success. As long as those connections to others are strong, they outweigh the appeal of moving to lower-tax states.

When the pandemic broke apart so much of social life, the ledger shifted. If your office, school, friendships and daily routines no longer anchor you in place, what is keeping you in a high-tax place?

But by early 2023, as social and economic life returned to normal, we found that millionaire migration patterns mostly reverted to their prepandemic baselines.

In other words, the surge in tax flight was temporary.

If you want the rich, appeal to the young

There is a big lesson here for state and city policies.

Every place wants to attract high-income earners and the spending power and tax dollars that accompany their salaries. Many policymakers think that tax cuts will lure them in, but this is mostly a fool’s errand. In normal times, the rich are deeply rooted and not movable.

The real opportunity lies in attracting and retaining the next generation of top earners – young people who are unattached to place and looking for opportunities to build their careers and their lives. Places that draw young professionals build the pipeline of future top earners.

Those early-career folks are mobile, but they are not thinking about the top tax rate. Their salaries are low. They are trying to find good jobs, pay the rent, form relationships and start families. They hope to be successful enough to one day be paying Mamdani’s millionaire tax. For the time being, though, they need the basic costs of living to be manageable. Soon they will need affordable child care and good public schools for their kids.

If the city helps them that far along, many of them would gladly pay a millionaire tax when and if the time comes. In this light, the Mamdani plan is simply practical: Higher taxes at the top support the services and quality of life that keep the next generation in the city.

The Conversation

Cristobal Young received funding from the Russell Sage Foundation and the Washington Center for Equitable Growth in support of this research project.

ref. New York’s wealthy warn of a tax exodus after Mamdani’s win – but the data says otherwise – https://theconversation.com/new-yorks-wealthy-warn-of-a-tax-exodus-after-mamdanis-win-but-the-data-says-otherwise-270415

Texas cities have some of the highest preterm birth rates in the US, highlighting maternal health crisis nationwide

Source: The Conversation – USA (3) – By Kobi V. Ajayi, Research Assistant Professor of Maternal and Child Health, Texas A&M University

The newest March of Dimes report gives the U.S. a D+ rating on preterm birth rates. IvanJekic/E+ via Getty Images

Seven years ago, at 30 weeks into a seemingly low-risk pregnancy, I unexpectedly began to bleed. Doctors diagnosed me with complete placenta previa. Then, while on bed rest at 32 weeks, my placenta suddenly ruptured, leading to an immediate emergency cesarean section.

I became one of about 10% of women giving birth in Nigeria to experience a preterm birth, which means before 37 weeks of pregnancy.

Now, as a maternal and child health researcher in the U.S., I’m struck by the stubbornly high preterm birth rate here. According to the most recent March of Dimes Report Card on maternal and infant health, released on Nov. 17, 2025, 10.4% of babies in the U.S. were born prematurely in 2024.

Preterm birth is the second-leading cause of infant deaths in the U.S., contributing to over 20,000 infant deaths each year. Some who survive are at increased risk of immediate and long-term health problems, with substantial emotional and financial tolls.

That rate has not budged for three years, according to the report – and it is consistently higher than in many other countries, particularly those in the Global North. That’s also true for other crucial aspects of maternal and infant health, such as cardiovascular diseases and mental health needs.

One key factor underlying the problem of preterm birth in the U.S. is extensive disparities in health care access for expectant mothers. In Texas, where I conduct my research and where I managed the state’s maternal mortality and morbidity review committee in 2023 and 2024, this issue plays out very clearly.

Revealing disparities that drive preterm birth rates

The March of Dimes report scored the U.S. overall a D+ grade on preterm birth rate at 10.4%, but states differ dramatically in their scores. New Hampshire, for example, scored an A- with 7.9% of infants born prematurely, while Mississippi, where 15% of infants are born prematurely, scored an F.

Texas’ rates aren’t the worst in the country, but it scores notably worse than the national rate of 10.4%, with 11.1% of babies – 43,344 in total – born prematurely in 2024. And Texas has an especially large effect on the low national score because 10 of the 46 cities that receive a D or F grade – defined in the report as a rate higher than the national rate of 10.4% – are located there. In 2023, Texas had the highest number of such cities in the U.S.

That may be in part because access to maternal care in Texas is so limited. Close to half of all counties across the state completely lack access to maternity care providers and birthing facilities, compared with one-third of counties across the U.S. Moreover, more counties in Texas are designated as health professional shortage areas, meaning they lack enough doctors for the number of people living in these areas. Shortages exist in 257 areas in Texas for primary care doctors, 149 for dentists and 251 for mental health providers.

But even against the backdrop of geographic differences in health care access, the starkest contribution to the state’s preterm birth rates comes from ethnic and racial disparities. Mothers of non-Hispanic Black (14.7%), American Indian/Alaskan Native (12.5%), Pacific Islander (12.3%) and Hispanic (10.1%) descent have babies prematurely much more often than do mothers who are non-Hispanic white (9.5%) or Asian (9.1%).

These numbers reflect the broader landscape of maternal health in the U.S. Although nationwide maternal mortality rates decreased from 22.3 to 18.6 deaths per 100,000 live births from 2022 to 2023, Black women died during pregnancy or within one year after childbirth at almost three times the rate (50.3%) of white (14.5%), Hispanic (12.4%) and Asian (10.7%) women.

Newborn baby hand holding onto an adult finger.
Adequate prenatal birth care in the U.S. is critical to reversing preterm birth trends.
Ratchat/iStock via Getty Images Plus

Preterm birth in context

Having a baby early is not the normal or expected outcome during pregnancy. It occurs due to complex genetic and environmental factors, which are exacerbated by inadequate prenatal care. According to the World Health Organization, women should have eight or more doctor visits during their pregnancy. Without adequate and quality prenatal care, the chances of reversing the preterm birth trends are slim.

Yet in Texas, unequal access to prenatal care remains a huge cause for concern. As the March of Dimes report documents, women of color in Texas receive adequate prenatal care at vastly lower rates than do white women – a fact that holds true in several other states as well. In addition, Texas has the highest uninsured rate in the nation, with 17% of women uninsured for health coverage, compared with a national average of 8%.

Nationwide, public health experts, community advocates and families are calling for comprehensive health insurance to help cover the costs of prenatal care, particularly for low-income families that primarily rely on Medicaid for childbirth. Cuts to funding for the Affordable Care Act and Medicaid outlined in the 2025 Budget Reconciliation Act make it likely that more Americans will lose access to care or see their health care costs balloon.

But state-level action may help reduce access barriers. In Texas, for example, a set of laws passed in 2025 may help improve access to care before, during and after pregnancy. Texas legislators funded initiatives targeted at workforce development in rural areas – particularly for obstetrician-gynecologists, emergency physicians and nurses, women’s preventive safety net programs, and maternal safety and quality improvement initiatives.

Rising rates of chronic diseases, such as hypertension, obesity and diabetes, also contribute to women giving birth prematurely. While working with the state maternal mortality and morbidity review committee, my team and I found that cardiovascular conditions contributed to the 85 pregnancy-related deaths that occurred in 2020.

An upward trend in obesity, diabetes and hypertension before pregnancy are pressing issues in the state, posing a serious threat to fetal and maternal health.

Learning from other countries

These statistics are grim.

But proven strategies to reduce these and other causes of maternal mortality and morbidity are available. In Australia, for instance, maternal deaths have significantly declined from 12.7 per 100,000 live births in the early 1970s to 5.3 per 100,000 between 2021 and 2022. The reduction can be linked to several medical interventions that are based on equitable, safe, woman-centered and evidence-based maternal health services.

In Texas, some of my colleagues at Texas A&M University use an equitable, woman-centered approach to develop culturally competent care centered on educational health promotion, preventive health care and community services.

Utilizing nurses and nonmedical support roles such as community health workers and doulas, my colleagues’ initiatives complement existing state efforts and close critical gaps in health care access for rural and low-income Texas families.

Across the country, researchers are using similar models, including the use of doulas, to address the Black maternal health crisis.

Research shows the use of doulas can improve access to care during pregnancy and childbirth, particularly for women of color.

Pregnant woman in a home having a massage from a non-medical caregiver.
Doulas, nonmedical providers who may assist parents before, during and after delivery, can play an important role in improving maternal health outcomes.
AndreyPopov/iStock via Getty Images Plus

It’s all hands on deck

There isn’t one, single risk factor that leads to a preterm birth, nor is there a universal approach to its prevention.

Results from my work with Black mothers who had a preterm birth aligns with what other experts are saying: Addressing the maternal health crisis in the U.S. requires more than policy interventions. It involves the dismantling of system-level and policy-driven inequities that lead to high rates of preterm births and negative pregnancy and childbirth outcomes, particularly for women of color, through funding, research, policy changes and community voices.

Although I had my preterm birth in Nigeria, my story and those shared by the Black mothers I have worked with in the U.S. show eerily similar underlying challenges across different settings.

The Conversation

Kobi Ajayi founded and remains affiliated with EDEN Foundation, Nigeria, a local non-profit organization with a mission to improve preterm infant outcomes.

ref. Texas cities have some of the highest preterm birth rates in the US, highlighting maternal health crisis nationwide – https://theconversation.com/texas-cities-have-some-of-the-highest-preterm-birth-rates-in-the-us-highlighting-maternal-health-crisis-nationwide-270251

Why do people get headaches and migraines? A child neurologist explains the science of head pain and how to treat it

Source: The Conversation – USA (3) – By Katherine Cobb-Pitstick, Assistant Professor of Child Neurology, University of Pittsburgh

There are steps you can take to relieve headache pain and prevent future attacks. Thai Liang Lim/E+ via Getty Images

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.


Why do people get headaches? – Evie V., age 10, Corpus Christi, Texas


Whether sharp and stabbing or dull and throbbing, a headache can ruin your day. But your brain doesn’t actually feel pain. So what is going on when it feels like your head is in a vise or about to explode?

I am a child neurologist – that is, a doctor who specializes in diseases of the brain in kids. Most of my patients are kids and adolescents who are struggling with headaches.

Head pain is complicated, and there is still a lot to learn about what causes it and how it can be treated. But researchers know there are a few key players that take part in generating pain.

What are headaches?

Nerves communicate information like pain through electrical signals between the body and the brain.

While the brain itself doesn’t have any nerve sensors to feel pain, blood vessels in the head and structures that protect and surround the brain do sense pain. When these tissues detect injury or damage, they release chemicals that trigger transmission of electrical signals through nerves to tell the brain the head is hurting.

The brain will also use nerves to signal the body to respond to pain with symptoms like feeling tired, teary eyes, runny nose, upset stomach and discomfort in bright or loud environments. It’s not clear why humans evolved to feel these symptoms, but some scientists theorize that this can lead to healthier lifestyle choices to decrease the chance of future headache attacks.

What causes headaches?

Often, headaches are a sign that the body is under some kind of stress. That stress triggers chemical and physical changes to the nerves and blood vessels around your brain, head and neck that can cause headaches.

Many types of stresses can cause headaches, including an infection, allergies, hormone changes during puberty and menstrual cycles, not getting enough sleep, not drinking enough water, skipping meals or drinking too much caffeine or alcohol. Sometimes, headaches happen with emotional stress, like feeling anxious or depressed. Even pressure in your sinuses due to changes in the weather can cause your head to hurt.

One in 11 kids have had a type of severe headache called a migraine. They feel like a pulsing and pounding pain in your head and come with other symptoms, including nausea or being sensitive to lights and sounds. During a migraine, it can be hard to do everyday activities because they can make the pain worse. It is also very common to feel unwell or irritable before the head pain starts and after the pain is gone.

Person curled up on couch beneath a blanket, hand over head
Migraines and chronic headaches can be debilitating.
Viktoriya Skorikova/Moment via Getty Images

Migraines occur when the nerves and other structures used in signaling and interpreting pain aren’t working properly, leading to pain and discomfort from stimulation that wouldn’t normally provoke this. There are many environmental and genetic factors that contribute to this dysfunction. Some people are born with a higher risk of developing migraines. Most people with migraines have someone in their family who also experiences them.

What can treat and prevent headaches?

Identifying what type of headache you’re experiencing is crucial to making sure it is treated properly. Because migraines can be severe, they’re the type of headache that most often leads to doctor’s visits for both kids and adults.

There are several ways to reduce your chances of having headaches, such as drinking plenty of water and limiting caffeine. Eating, sleeping and exercising regularly are other ways you can help prevent headaches.

Person with head resting on forearms on top of a pile of books in a library
Sleep deprivation can worsen headaches.
DjelicS/iStock via Getty Images Plus

While painkillers like ibuprofen are often enough to relieve a headache, prescription medications are sometimes necessary to make head pain more bearable. Some medications can also help control or prevent headache episodes. Physical therapy to exercise the body or behavioral therapy to work on the mind can also help you manage headache pain. There are even electronic devices to treat headaches by stimulating different parts of the nervous system.

It is important to talk with a doctor about headaches, especially if it’s a new problem or you experience a change in how they usually feel. Sometimes, brain imaging or blood tests are needed to rule out another health issue.

Recognizing a headache problem early will help your doctor get started on helping you figure out the best way to treat it.


Hello, curious kids! Do you have a question you’d like an expert to answer? Ask an adult to send your question to CuriousKidsUS@theconversation.com. Please tell us your name, age and the city where you live.

And since curiosity has no age limit – adults, let us know what you’re wondering, too. We won’t be able to answer every question, but we will do our best.

The Conversation

Katherine Cobb-Pitstick does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Why do people get headaches and migraines? A child neurologist explains the science of head pain and how to treat it – https://theconversation.com/why-do-people-get-headaches-and-migraines-a-child-neurologist-explains-the-science-of-head-pain-and-how-to-treat-it-268838

De « Grey’s Anatomy » à « The Diplomat », quand les séries interrogent les relations amoureuses au travail

Source: The Conversation – in French – By Monika Siejka, Enseignante Chercheuse en storytelling, leadership et management, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) – Université Paris-Saclay

Les séries états-uniennes placent volontiers des histoires d’amour entre collègues au cœur de leurs intrigues, pointant des problématiques bien réelles : rapports de domination potentiels, séparation entre vie privée et vie professionnelle, ou « gestion du couple » comme s’il s’agissait d’une entreprise.


Le licenciement du directeur général de Nestlé à la suite de la révélation d’une relation amoureuse consentie dans le cadre du travail a donné lieu à de nombreux commentaires. Beaucoup y ont vu l’application de règles purement anglo-saxonnes. En effet, dans le droit français, les articles 9 du Code civil et L. 1121-1 du Code du travail protègent les relations personnelles ou amoureuses des salariés de tout droit de regard de l’entreprise. On oublie souvent les limites de cette liberté relationnelle. Elle ne doit générer aucun favoritisme (en cas de différence de niveau hiérarchique), ne donner lieu à aucun exhibitionnisme (pas de geste, pas de sexe) et respecter la confidentialité des informations de l’entreprise (pas d’échange de renseignements).

Les séries en revanche, américaines ou non, ne semblent guère se soucier du périmètre juridique. Les histoires d’amour en milieu professionnel abondent (workplace romance en anglais), allant jusqu’à former souvent la trame narrative principale des fictions. De Urgences à Suits, de X-Files à Castle, le public se passionne pour les jeux de séduction et les rebondissements amoureux en milieu hospitalier, policier, juridique, etc.

Aujourd’hui le succès de The Diplomat (2023-…) – qui raconte le quotidien d’une ambassadrice des États-Unis fraîchement nommée au Royaume-Uni, qui tente de survivre à son mariage avec Hal, diplomate de carrière et lui-même ancien ambassadeur – démontre que cet intérêt pour le couple au travail fonctionne toujours aussi bien. Cela s’explique peut-être par une réalité de terrain : les relations amoureuses au travail existent et sont nombreuses, de l’aventure d’un soir à la formation de couples pérennes. C’est vrai aux États-Unis comme en France. Dès lors, les séries auraient-elles le mérite de pointer ce que les entreprises tout comme la recherche en management ont du mal à aborder ?




À lire aussi :
Relations sexuelles et amoureuses en entreprise : ce que #MeToo a changé. Ou pas.


Les romances au travail, terreau fertile dans les séries

Longtemps, le seul problème des scénaristes a été celui du syndrome de la série Clair de lune (1985-1989). Celle-ci racontait les enquêtes loufoques menées par deux détectives privés, la boss Maddie (Cybill Shepherd) et son employé David (Bruce Willis). La tension amoureuse enthousiasmait les spectateurs. Mais le baiser échangé entre les personnages provoqua une chute considérable des audiences. En multipliant les leurres, Chris Carter, créateur d’X Files (1993-2002), le comprend parfaitement : quand Fox Mulder et Dana Scully vont-ils enfin s’embrasser ? Les fans devront attendre plus de six saisons pour un début de réponse.

Mulder (David Duchovny) et Scully (Gillian Anderson), couple de travail mythique de la série X-Files.
Allociné

Les séries chorales ouvrent un autre champ : en proposant une vaste galerie de personnages, elles décuplent les possibilités de rebondissements sentimentaux.

Toutefois, ces séries se fondent aussi sur une homogamie sociale, que les enquêtes confirment, les emplois de catégorie supérieure étant particulièrement concernés par l’entre-soi amoureux, ce que confirment les succès de Suits l’Américaine et de la Britannique The Split pour le milieu des avocats ou encore la suédoise Love and Anarchy pour celui de l’édition. Les séries sont bien le miroir de nos sociétés.

Dans ce contexte, les séries hospitalières se distinguent : Grey’s Anatomy, depuis 2005, met en scène sur 22 saisons ses entrecroisements amoureux. La série a également été pionnière en montrant la naissance de couples lesbiens dans le cadre professionnel, le plus célèbre étant celui formé par la chirurgienne en orthopédie Callie Torres et la chirurgienne en pédiatrie Arizona Robbins.

Dans la majorité de ces romances, la conciliation entre la vie privée et la vie professionnelle est évoquée sur de très nombreux plans : évolution des carrières, maternité, impact des séparations. Toutefois, les interférences avec le fonctionnement même de l’entreprise restent hors sujet.

Aucune demande de pacte de non-fraternisation n’est demandée comme c’est le cas dans certaines entreprises états-uniennes voire françaises pour une déclaration de couple auprès de la direction des ressources humaines. La mise en couple n’est pas contradictoire avec l’obligation de loyauté professionnelle. Quant à la violence de certaines situations, l’entreprise ne veut rien savoir.

Une prise en compte progressive des rapports de domination

Avant l’affaire Weinstein et l’avènement de #MeToo, la série Mad Men (2007-2015), qui décrit le quotidien d’une agence publicitaire dans le New York des années 1950, montrait déjà les rapports de force au sein des entreprises, notamment la vulnérabilité des femmes.

Le charismatique directeur de la création, Don Draper, y multiplie les aventures en milieu professionnel sans rendre de comptes à qui que ce soit. Une de ses secrétaires est congédiée pour avoir cru à une histoire d’amour. Une autre est épousée puis propulsée comme rédactrice sans aucun égard pour l’équipe en place. Loin d’être isolé, son comportement s’inscrit dans une forme de violence tacite et systémique envers les femmes. Ainsi, les associés de l’agence incitent une assistante à coucher avec un client pour obtenir un marché. On signifie à Megan, actrice, qu’il lui sera impossible de progresser sans monter dans une chambre d’hôtel.

Par la suite, des séries, comme The Morning Show (2019-…), portrait sans concessions des coulisses d’une matinale télé aux États-Unis, alors qu’éclate au grand jour un scandale d’inconduites sexuelles, mettent au jour les rouages organisationnels qui ont permis de couvrir les auteurs de harcèlement, ou pire. Le consentement devient le fil rouge de la fiction, il devient central dans la présentation d’une relation amoureuse.

Concernant les workplace romances, les séries deviennent prudentes, les entreprises se méfient. Et en posant des limites à la sacralisation de la vie privée, la Cour de cassation confirme cette réserve grandissante. S’aimer dans la vie professionnelle comporte donc un certain nombre de risques non négligeables.

Quand le couple se mue en entreprise

Peut-être est-ce pour cette raison que le couple déjà marié au travail retrouve les faveurs du public ? C’est ce que l’on pourrait penser avec The Diplomat.

« Like most couples. Two carriers, two jobs : make it works. »

« Comme la plupart des couples. Deux carrières, deux emplois : il faut que cela fonctionne », martèle Kate Wyler à la cheffe de cabinet de la Maison Blanche.

Dans The Diplomat, son couple avec Hal doit fonctionner comme une entreprise avec ses règles, ses objectifs et ses négociations. Il s’oblige à un « rôle social » comme défini par le sociologue Ervin Goffmann. Nous faisant entrer dans la chambre à coucher, pièce intime par excellence, la série nous montre les jeux de pouvoir, d’ajustements et les enjeux de cette curieuse entreprise que sont les Wyler. Mais peut-on « gérer » son couple selon les règles du management ? Le débordement actuel du vocabulaire managérial dans la sphère privée semble donner raison à The Diplomat. Kate veut gérer.

La série pointe aussi la difficulté des seconds rôles des conjoints dans des secteurs professionnels où, tout en faisant partie intégrante du système de représentation, ils n’ont aucune fonction officielle. Sa femme ayant été nommée ambassadeur, Hal Wyler se présente comme « the ambassador’s wife ». Inversant les genres, la série s’amuse à confronter Hal à ce second rôle, le plus souvent féminin, au statut flou et pourtant nécessaire dans le secteur politico-diplomatique.

Il fait écho au monde de la tech, de l’artisanat, de l’agriculture, où le statut du conjoint se structure fort lentement alors que le travail en couple est une réalité ancienne.

Dans WeCrashed (2022), Adam et Rebekah Neumann font bloc tout au long de l’ascension fulgurante puis de la chute de la société WeWork, spécialisée dans les espaces de coworking. En aurait-il été de même si le fondateur avait été seul ? La série pose en filigrane la question. Elle n’amoindrit pas pour autant les difficultés de Rebekah pour trouver sa place ni les effets catastrophiques du fiasco sur les équipes.

Séparer la vie professionnelle et la vie privée ?

Les médias font la une des évictions de dirigeants de grandes entreprises lorsqu’on leur découvre une liaison amoureuse. Ces procédures induisent une absorption de la sphère privée individuelle par la professionnelle : pas d’histoire de couple possible. Cependant, comme nous l’avons montré plus haut, il existe de nombreux secteurs économiques où, au contraire, le couple constitue un élément récurrent de la dynamique des organisations.

Autant de brèches dans lesquelles ne cessent de s’engouffrer les séries.

Car bien que prônée haut et fort, la séparation entre la vie privée et la vie professionnelle est traversée par les injonctions contradictoires de notre vie au travail.

Dès lors, peut-être faudrait-il regarder du côté de la série dystopique Severance (2022-…), dans laquelle les employés subissent une opération chirurgicale de séparation entre leurs souvenirs liés à leur vie professionnelle et ceux liés à leur vie privée, qui nous invite à réfléchir à la nature même de notre relation au travail et à la place de l’individualité dans l’entreprise.




À lire aussi :
« Severance », la série qui perturbe et questionne notre relation au travail


Prise au piège de sa volonté de contrôle et des injonctions contradictoires de son employeur, la diplomate Kate Wyler n’a donc pas fini de se débattre. Mais pour le plus grand plaisir des spectateurs.

The Conversation

Monika Siejka ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. De « Grey’s Anatomy » à « The Diplomat », quand les séries interrogent les relations amoureuses au travail – https://theconversation.com/de-greys-anatomy-a-the-diplomat-quand-les-series-interrogent-les-relations-amoureuses-au-travail-269219

Utiliser ChatGPT, est-ce tricher ? Réflexions sur la fraude étudiante à l’ère des IA génératives

Source: The Conversation – in French – By Jean-François Cerisier, Professeur de sciences de l’information et de la communication, Université de Poitiers

L’usage de l’intelligence artificielle générative est désormais massif dans les nouvelles générations étudiantes, bousculant les codes et les enjeux de l’évaluation des connaissances. Voilà qui pose un certain nombre de dilemmes aux universités. Comment peuvent-elles repenser leurs examens pour maintenir la crédibilité des diplômes ?


S’il existe vraiment des innovations de rupture dans l’éducation, les usages des intelligences artificielles génératives pourraient être de celles-là. Ce n’est rien moins qu’un nouveau rapport au savoir qui s’instaure sous nos yeux. À l’université, c’est probablement l’évaluation des apprentissages et le risque de triche qui soulèvent le plus de questions.

Les fraudes sont difficiles à observer. Par définition la triche est cachée et il est difficile de la différencier des utilisations légitimes des intelligences artificielles génératives. De plus, il n’existe pas à ce jour en France d’étude robuste qui permettrait de la qualifier et de la quantifier, d’autant que les plateformes de détection de plagiat s’avèrent inopérantes. Peu fiables, celles-ci produisent à la fois des faux positifs et des faux négatifs, comme le montrent l’étude de William H. Walters et celle de Philippe Dessus et Daniel Seyve.




À lire aussi :
Face à l’IA, l’enseignant ne doit pas se transformer en chasseur de fraudes, mais repenser sa pédagogie


On sait en revanche que les étudiants utilisent massivement les intelligences artificielles génératives. Une enquête du Digital Education Council, publiée en août 2024 montre que 86 % d’entre eux, dans un panel de 16 pays incluant la France, les utilisent, alors qu’une étude, plus récente, du Higher Education Policy Institute, réalisée en février 2025, estime que 92 % des étudiants britanniques y recourent dont 88 % pour des activités donnant lieu à une évaluation.

Face à ce double constat, les universités semblent assez démunies. L’effondrement de leur capacité à maintenir les formats classiques d’évaluation appelle à en repenser radicalement les finalités et les modalités afin de maintenir l’efficacité des formations et la crédibilité des diplômes.

À quoi les évaluations servent-elles ?

Dans l’éducation comme ailleurs, on définit usuellement l’évaluation comme un jugement de valeur porté sur une mesure et destiné à une prise de décision. À l’université, il s’agit donc de proposer aux étudiants des activités, spécifiques ou non, qui permettront de mesurer leurs connaissances et/ou leurs compétences. Celles-ci peuvent prendre différentes formes, dont l’épreuve écrite sur table, l’exposé oral, le mémoire de recherche ou le rapport de stage.

L’évaluation est un processus au service de deux finalités très différentes, potentiellement complémentaires mais le plus souvent confondues.

La première vise à accompagner les étudiants en leur fournissant des informations qualitatives (analyse des progrès et des difficultés, conseils pour y remédier…) et/ou quantitatives (notes) sur leurs apprentissages. Ces éléments leur permettent d’orienter et d’ajuster leurs efforts, alors qu’ils invitent le corps professoral à adapter les leurs aux besoins des étudiants. Pour ces raisons, cette forme d’évaluation est dite « formative » et joue un rôle essentiel dans la réussite des étudiantes et des étudiants.

L’autre finalité, qualifiée le plus souvent de « sommative », vise à rendre compte des connaissances et/ou compétences des étudiants, à une étape donnée d’une formation, souvent à la fin, afin d’autoriser une poursuite d’études, de délivrer un certificat ou un diplôme. Les résultats d’une évaluation sommative sont le plus souvent communiqués selon des modalités quantitatives (notes).

Quelle que soit la finalité d’une évaluation, sa qualité repose d’abord sur son alignement avec les objectifs d’apprentissage visés. Elle doit rendre compte de ce qui est attendu en termes de connaissances et/ou de compétences. Elle doit par ailleurs être fiable, c’est-à-dire mesurer ce qu’elle est censée mesurer et le faire de façon suffisamment fine. Enfin, elle doit procéder de manière équitable, en tenant compte de difficultés rencontrées par les étudiants susceptibles de masquer leurs apprentissages, comme la prise en compte de handicaps invisibles, tels que la dyslexie par exemple.

Qu’est-ce que tricher avec une intelligence artificielle générative ?

Il convient de distinguer nettement la fraude de toutes les autres situations dans lesquelles les étudiants délèguent aux intelligences artificielles génératives tout ou partie des tâches qui leur sont prescrites. Hors évaluation, l’aide attendue des intelligences artificielles génératives constitue également une problématique pédagogique d’une très grande importance mais elle n’entame pas l’intégrité du rapport aux règles universitaires.

La triche est avérée si la production de l’étudiante ou de l’étudiant s’inscrit dans une démarche d’évaluation alors que l’utilisation d’intelligences artificielles génératives a été interdite. Ainsi, la résolution d’un problème de statistique dans le cadre d’un examen de fin de semestre, en recourant de manière dissimulée à ces outils, alors que leur utilisation a été interdite par le corps professoral, relève de la triche. Recourir à la même intelligence artificielle générative comme aide à la réalisation du même problème avec l’accord et l’encadrement de l’enseignant n’en relève pas.

De fait, la triche à l’intelligence artificielle générative ruine la qualité de l’évaluation, en particulier sa fiabilité, puisque l’évaluation ne mesure plus ce qu’elle est censée mesurer. De même, cette fraude entraîne une rupture d’égalité face à l’évaluation. De façon générique, la fraude académique désigne les pratiques estudiantines interdites et/ou trompeuses destinées à obtenir un avantage en termes d’évaluation de leurs performances.

Pourquoi les étudiants fraudent-ils ?

La triche doit être rapportée à ce que représente l’évaluation pour les étudiants. Une publication scientifique récente souligne l’importance que les étudiants accordent à l’évaluation de leurs apprentissages mais aussi les critiques qu’ils formulent à l’égard d’évaluations dont ils estiment que les formes actuelles les rendent stressantes, injustes, opaques, et qu’elles manquent de rétroactions.

Cette pression évaluative s’exerce dans un contexte social et universitaire où l’individualisme, la compétition et le court-termisme sont tels qu’il ne faut pas s’étonner de la montée d’une vision utilitariste des études universitaires et donc de l’affaiblissement de l’exigence morale. Le modèle du « diamant de la fraude » (Wolfe et Hermanson, 2004) identifie les quatre facteurs principaux qui peuvent expliquer (et prédire) toute triche ; rationalisation de l’activité, opportunité de tricher, motivation et capacité perçue.

La confrontation de ce modèle à la problématique de la fraude académique est éclairante. Les quatre facteurs ont du sens dans le contexte universitaire :

  • La triche permet une forme de forte rationalisation de l’activité avec une maximisation des résultats et une minimisation de l’effort.

  • L’opportunité de tricher est importante puisque les performances des intelligences artificielles génératives permettent de répondre assez efficacement à la plupart des formats d’évaluation (répondre à des questions de cours, analyser un texte, traiter des données, coder…).

  • Très forte, la motivation de la triche est liée à la valeur utilitaire attribuée aux études et conduit à privilégier l’obtention d’un diplôme à l’intérêt intrinsèque des apprentissages. Elle répond aussi, de façon étonnante, à une démarche de rééquilibrage des étudiants qui estiment que, s’ils n’utilisent pas les intelligences artificielles génératives, ils sont défavorisés par rapport à ceux qui l’utilisent.

  • La capacité perçue, enfin, est forte, puisque les intelligences artificielles génératives sont simples à prendre en main, et que même les usages novices les plus maladroits produisent des résultats intéressants.

Que peuvent faire les universités ?

Maintenir les modalités actuelles d’évaluation n’étant pas une option, interdire efficacement l’utilisation des intelligences artificielles génératives et détecter leur utilisation a posteriori n’étant pas possible, les universités vont devoir repenser leur doctrine de l’évaluation.

Recourir plus fréquemment à l’évaluation orale, densifier la surveillance des examens, réviser les chartes des examens, sanctionner davantage les fraudes, élaborer et diffuser des chartes d’usages, concevoir des épreuves qui résistent mieux aux intelligences artificielles génératives sont des pistes importantes qu’il convient de suivre.

Elles ne sauraient pourtant régler le problème, d’autant plus qu’elles sont très coûteuses en temps, denrée rare et chère dans les universités. Une autre voie possible est que les étudiants puissent donner un sens aux évaluations qui les invitent à ne pas tricher.




À lire aussi :
Utiliser l’IA en classe pour recommander des exercices aux élèves : quel intérêt, quels biais ?


Pour ce faire, l’une des pistes consiste à séparer strictement les évaluations destinées à accompagner les étudiants dans leurs parcours d’apprentissage, avec l’analyse de leurs difficultés et des pistes pour les aider à les surmonter (évaluations formatives), de celles destinées à valider formellement les étapes de leur formation, avec des notes ou des validations de compétences (les évaluations sommatives).

S’agissant des évaluations sommatives, cela permettrait de les sanctuariser pour en conserver la fiabilité. Sans exclure tout risque de triche, une diminution drastique de leur nombre permettrait d’y concentrer plus de moyens pour limiter les risques de triche.

Ainsi dégagées de leur valeur sommative, toutes les autres évaluations pourraient être conçues autour de leur finalité formative et inciter les étudiants à une sincérité de leur travail pour un meilleur accompagnement.

Il est vrai que cette organisation contrevient à la logique d’évaluation sommative continue qui s’est mise en place ces dernières années. Pas de solution miracle donc, mais un chantier important à ouvrir en n’oubliant pas d’y inclure le corps professoral et les étudiants qui sont, non seulement les premiers concernés, mais aussi les seuls à disposer d’une connaissance intime de la situation.

The Conversation

Jean-François Cerisier ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. Utiliser ChatGPT, est-ce tricher ? Réflexions sur la fraude étudiante à l’ère des IA génératives – https://theconversation.com/utiliser-chatgpt-est-ce-tricher-reflexions-sur-la-fraude-etudiante-a-lere-des-ia-generatives-268860