From ancient Rome to today, war-makers have talked constantly about peace

Source: The Conversation – USA – By Timothy Joseph, Professor of Classics and the Director of Peace and Conflict Studies, College of the Holy Cross

When is war peace? When someone in power says it is. Dimitri Otis, DigitalVision via Getty Images

In a week filled with news about President Donald Trump’s aggressive moves to take control of Greenland, the world got a window into his thinking about the concept of “peace.”

“Considering your Country decided not to give me the Nobel Peace Prize for having stopped 8 Wars PLUS, I no longer feel an obligation to think purely of Peace, although it will always be predominant, but can now think about what is good and proper for the United States of America,” Trump said in the message to Norway’s prime minister, Jonas Gahr Støre.

Trump has long coveted the Nobel Peace Prize. In his second term as president, he has styled himself as a peacemaker, as his message to Støre demonstrates. But as I have learned from my work as a scholar of Roman history and rhetoric, the word “peace” can mean something entirely different when used by those wielding power.

In the year 98 CE, the Roman historian Tacitus wrote, “With lying names they call theft, slaughter, and plunder ‘control,’ and when they make a wasteland, they call it ‘peace.’”

This line, said of the Romans by an enemy of Rome in Tacitus’ work “Agricola,” has had a long and varied afterlife among those commenting on imperialism.

Nearly 2,000 years after Tacitus’ time, U.S. Sen. Robert Kennedy used the phrase in a 1968 speech questioning the U.S. war in Vietnam; the Irish poet Seamus Heaney echoed it in a 1974 poem figuring his homeland’s centuries of desolation; more recently still, the HBO series “Succession” reworked the words into a critique of the show’s despotic central character.

The quotation has had staying power because it cuts to the core of how talk of peace can be used as a tool of war and power acquisition.

At the one-year mark of the second Trump administration, these words from two millennia ago speak as presciently as ever.

Time and again over the last year, Trump has branded acts of war with the language of peace. More broadly, his administration’s persistent styling of Trump as a “President of Peace” and his continuous claims of entitlement to the Nobel Peace Prize have moved in tandem with a growing agenda of military aggression, both foreign and domestic.

‘War is peace’

A large stone building that is an altar, with wide steps up to it.
The Altar of Augustan Peace, dedicated by the Roman emperor Augustus in 9 BCE after his victories in civil and foreign wars.
Andrea Jemolo, Electa / Mondadori Portfolio via Getty Images

Tacitus, who lived from c. 55 to c. 120 CE, places his critique of Roman imperial rhetoric into the mouth of Calgacus, the possibly fictionalized chief of the Caledonians in northern Britain. The words, delivered in a speech before the Battle of Mons Graupius in 83 CE, anticipated what was to come: a crushing Roman victory and the devastation of the Caledonian people.

Calgacus’ aphorism gets at something fundamental about Roman imperial propaganda, which presented the cessation of war – on their terms – as “peace.” A physical representation of this is the Altar of Augustan Peace, from 9 BCE, which was built after the warlord Augustus’ victories in foreign and civil wars. A reconstruction of one of the monument’s friezes includes the personified goddess Roma sitting atop war spoils. Peace for Rome was tantamount to victory for Rome – or, as in this case, for one of Rome’s strongmen.

And while Tacitus, an accomplished Roman politician and provincial governor, was himself no opponent of Roman imperialism, it is significant that he crafts a speech for an enemy of Rome that gives the lie to the Roman rhetoric of peace. The non-Roman’s perspective on Romans’ “lying names” cuts through the posturing of the imperialist.

Calgacus’ critique thus puts into relief the jarring juxtapositions the world has seen and heard from Trump over the last year.

On Dec. 31, 2025, Trump declared that his New Year’s resolution for 2026 was “peace on Earth.” Three days later, he invaded Venezuela and captured President Nicolás Maduro, a military action that left 100 dead and a humanitarian crisis looming. Apart from claiming control of some $2.5 billion of Venezuela’s oil reserves, Trump has provided few details about how he will personally “run the country.”

A similarly striking disconnect between rhetoric and reality came earlier in 2025 with the U.S.’s June 21 bombing of Iran, which the White House X account celebrated with the declaration “CONGRATULATIONS WORLD, IT’S TIME FOR PEACE!” Some seven months later, as the Iranian regime violently suppresses broad protests, Trump is weighing additional acts of war, saying that “the military is looking at it and we’re looking at some strong options.”

In Gaza, Trump is chairing a “Board of Peace” to oversee the ceasefire between Israel and Hamas and to implement a new government. The Israel/Hamas War is one of eight wars Trump claims credit for ending.

As with the seven other cases, the claim to have brought peace in Gaza lacks substantiation.

From the announcement of the ceasefire on Oct. 10, 2025, through Dec. 30, 2025, 414 Palestinians have been killed and 1,145 injured by Israeli attacks. That is, the war rages on.

Now Trump, apparently out of resentment at not being award the Nobel, declares that he will seize Greenland “one way or the other” and that Cuba must accept his terms on Venezuelan oil shipments “before it is too late.”

At home, Trump ramps up the presence of ICE, whose violent approach to enforcement has had deadly consequences for 32 people in custody and one woman protester.

All this as FIFA, the international governing body for soccer, awards Trump its first-ever Peace Prize; and as he stamps his name on – after defunding – the U.S Institute of Peace.

Spread of ‘peace’ rhetoric

Today’s dizzying clashes in word and deed are illuminated by Calgacus’ searing words, which show how easily the rhetoric of peace can be used to cover for or distract from acts of war.

At the same time, Tacitus points readers to the prevalence and thus the normalization and commonness of this rhetoric, which can become an inseparable corollary of a program of making war.

Indeed, Tacitus presents similar indictments of Roman imperial rhetoric twice elsewhere in his writing, again from the perspectives of those threatened by Rome.

For both the Batavians, of modern-day Netherlands, in the “Histories” and another group of Britons in the “Annals,” the great menace to their peoples is Roman “peace.”

The Conversation

Timothy Joseph 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. From ancient Rome to today, war-makers have talked constantly about peace – https://theconversation.com/from-ancient-rome-to-today-war-makers-have-talked-constantly-about-peace-273095

America’s next big clean energy resource could come from coal mine pollution – if we can agree on who owns it

Source: The Conversation – USA (2) – By Hélène Nguemgaing, Assistant Clinical Professor of Critical Resources & Sustainability Analytics, University of Maryland

Acid mine waste turns rocks orange along Shamokin Creek in Pennsylvania.
Jake C/Wikimedia Commons, CC BY-SA

Across Appalachia, rust-colored water seeps from abandoned coal mines, staining rocks orange and coating stream beds with metals. These acidic discharges, known as acid mine drainage, are among the region’s most persistent environmental problems. They disrupt aquatic life, corrode pipes and can contaminate drinking water for decades.

However, hidden in that orange drainage are valuable metals known as rare earth elements that are vital for many technologies the U.S. relies on, including smartphones, wind turbines and military jets. In fact, studies have found that the concentrations of rare earths in acid mine waste can be comparable to the amount in ores mined to extract rare earths.

Scientists estimate that more than 13,700 miles (22,000 kilometers) of U.S. streams, predominantly in Pennsylvania and West Virginia, are contaminated with acid mine discharge.

A closer look at acid mine drainage from abandoned mines in Pennsylvania. Pennsylvania Fish and Boat Commission.

We and our colleagues at West Virginia University have been working on ways to turn the acid waste in those bright orange creeks into a reliable domestic source for rare earths while also cleaning the water.

Experiments show extraction can work. If states can also sort out who owns that mine waste, the environmental cost of mining might help power a clean energy future.

Rare earths face a supply chain risk

Rare earth elements are a group of 17 metals, also classified as critical minerals, that are considered vital to the nation’s economy or security.

Despite their name, rare earth elements are not all that rare. They occur in many places around the planet, but in small quantities mixed with other minerals, which makes them costly and complex to separate and refine.

A mine and buildings with mountains in the background.
MP Materials’ Mountain Pass Rare Earth Mine and Processing Facility, in California near the Nevada border, is one of the few rare earth mines in the U.S.
Tmy350/Wikimedia Commons, CC BY-SA

China controls about 70% of global rare earth production and nearly all refining capacity. This near monopoly gives the Chinese government the power to influence prices, export policies and access to rare earth elements. China has used that power in trade disputes as recently as 2025.

The United States, which currently imports about 80% of the rare earth elements it uses, sees China’s control over these critical minerals as a risk and has made locating domestic sources a national priority.

The U.S. Geological Survey has been mapping locations for potential rare earth mining, shown in pink. But it takes years to explore a locations and then get a mine up and running.
USGS

Although the U.S. Geological Survey has been mapping potential locations for extracting rare earth elements, getting from exploration to production takes years. That’s why unconventional sources, like extracting rare earth elements from acid mine waste, are drawing interest.

Turning a mine waste problem into a solution

Acid mine drainage forms when sulfide minerals, such as pyrite, are exposed to air during mining. This creates sulfuric acid, which then dissolves heavy metals such as copper, lead and mercury from surrounding rock. The metals end up in groundwater and creeks, where iron in the mix gives the water an orange color.

Expensive treatment systems can neutralize the acid, with the dissolved metals settling into an orange sludge in treatment ponds.

For decades, that sludge was treated as hazardous waste and hauled to landfills. But scientists at West Virginia University and the National Energy Technology Laboratory have found that it contains concentrations of rare earth elements comparable to those found in mined ores. These elements are also easier to extract from acid mine waste because the acidic water has already released them from the surrounding rock.

Metals flowing from acid mine waste make a creek look orange.
Acid mine drainage flowing into Decker’s Creek in Morgantown, West Virginia, in 2024.
Helene Nguemgaing

Experiments have shown how the metals can be extracted: Researchers collected sludge, separated out rare earth elements using water-safe chemistry, and then returned the cleaner water to nearby streams.

It is like mining without digging, turning something harmful into a useful resource. If scaled up, this process could lower cleanup costs, create local jobs and strengthen America’s supply of materials needed for renewable energy and high-tech manufacturing.

But there’s a problem: Who owns the recovered minerals?

The ownership question

Traditional mining law covers minerals underground, not those extracted from water naturally running off abandoned mine sites.

Nonprofit watershed groups that treat mine waste to clean up the water often receive public funding meant solely for environmental cleanup. If these groups start selling recovered rare earth elements, they could generate revenue for more stream cleanup projects, but they might also risk violating grant terms or nonprofit rules.

To better understand the policy challenges, we surveyed mine water treatment operators across Pennsylvania and West Virginia. The majority of treatment systems were under landowner agreements in which the operators had no permanent property rights. Most operators said “ownership uncertainty” was one of the biggest barriers to investment in the recovery of rare earth elements, projects that can cost millions of dollars.

Not surprisingly, water treatment operators who owned the land where treatment was taking place were much more likely to be interested in rare earth element extraction.

A map shows many acid mine drainage sites, largely in the column from the southwest to the northeast.
Map of acid mine drainage sites in West Virginia.
Created by Helene Nguemgaing, based on data from West Virginia Department of Environmental Protection, West Virginia Office of GIS Coordination, and U.S. Geological Survey

West Virginia took steps in 2022 to boost rare earth recovery, innovation and cleanup of acid mine drainage. A new law gives ownership of recovered rare earth elements to whoever extracts them. So far, the law has not been applied to large-scale projects.

Across the border, Pennsylvania’s Environmental Good Samaritan Act protects volunteers who treat mine water from liability but says nothing about ownership.

A map shows many acid mine drainage sites, particularly in the western part of the state.
Map of acid mine drainage sites in Pennsylvania.
Created by Helene Nguemgaing, based on data from Pennsylvania Spatial Data Access

This difference matters. Clear rules like West Virginia’s provide greater certainty, while the lack of guidance in Pennsylvania can leave companies and nonprofits hesitant about undertaking expensive recovery projects. Among the treatment operators we surveyed, interest in rare earth element extraction was twice as high in West Virginia than in Pennsylvania.

The economics of waste to value

Recovering rare earth elements from mine water won’t replace conventional mining. The quantities available at drainage sites are far smaller than those produced by large mines, even though the concentration can be just as high, and the technology to extract them from mine waste is still developing.

Still, the use of mine waste offers a promising way to supplement the supply of rare earth elements with a domestic source and help offset environmental costs while cleaning up polluted streams.

Early studies suggest that recovering rare earth elements using technologies being developed today could be profitable, particularly when the projects also recover additional critical materials, such as cobalt and manganese, which are used in industrial processes and batteries. Extraction methods are improving, too, making the process safer, cleaner and cheaper.

Government incentives, research funding and public-private partnerships could speed this progress, much as subsidies support fossil fuel extraction and have helped solar and wind power scale up in providing electricity.

Treating acid mine drainage and extracting its valuable rare earth elements offers a way to transform pollution into prosperity. Creating policies that clarify ownership, investing in research and supporting responsible recovery could ensure that Appalachian communities benefit from this new chapter, one in which cleanup and clean energy advance together.

The Conversation

The authors 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. America’s next big clean energy resource could come from coal mine pollution – if we can agree on who owns it – https://theconversation.com/americas-next-big-clean-energy-resource-could-come-from-coal-mine-pollution-if-we-can-agree-on-who-owns-it-272029

Despite its steep environmental costs, AI might also help save the planet

Source: The Conversation – USA (2) – By Nir Kshetri, Professor of Management, University of North Carolina – Greensboro

The rapid growth of artificial intelligence has sharply increased electricity and water consumption, raising concerns about the technology’s environmental footprint and carbon emissions. But the story is more complicated than that.

I study emerging technologies and how their development and deployment influence economic, institutional and societal outcomes, including environmental sustainability. From my research, I see that even as AI uses a lot of energy, it can also make systems cleaner and smarter.

AI is already helping to save energy and water, cut emissions and make businesses more efficient in agriculture, data centers, the energy industry, building heating and cooling, and aviation.

A tractor moves alongside a field with rows of crops.
Agricultural irrigation accounts for an enormous amount of the world’s water use.
AP Photo/Luca Bruno

Agriculture

Agriculture is responsible for nearly 70% of the world’s freshwater use, and competition for water is growing.

AI is helping farmers use water more efficiently. Argentinian climate tech startup Kilimo, for example, tackles water scarcity with an AI-powered irrigation platform. The software uses large amounts of data, machine learning, and weather and satellite measurements to determine when and how much to water which areas of fields, ensuring that only the plants that actually need water receive it.

Chile’s Ministry of Agriculture has found that in that country’s Biobío region, farms using Kilimo’s precision irrigation systems have reduced water use by up to 30% while avoiding overirrigation. Using less water also reduces the amount of energy needed to pump it from the ground and around a farm.

Kilimo is one example that shows how AI can create economic incentives for sustainability: The amount of water farmers save from precision irrigation is verified, and credits for those savings are sold to local companies that want to offset some of their water use. The farmers then earn a profit – often 20% to 40% above their initial investment.

Data centers

U.S. data centers consumed about 176 terawatt-hours of electricity in 2023, accounting for roughly 4.4% of total U.S. electricity use. This number increased to 183 TWh in 2024. This growing energy footprint has made improving data center efficiency a critical priority for the operators of the data centers themselves, as well as the companies that rely on them – including cloud providers, tech firms and large enterprises running AI workloads – both to reduce costs and meet sustainability and regulatory goals.

AI is helping data centers become more efficient. The number of global internet users grew from 1.9 billion in 2010 to 5.6 billion in 2025. Global internet traffic surged from 20.2 exabytes per month in 2010 to 521.9 exabytes per month in 2025 – a more than 25-fold increase.

Despite the surge in internet traffic and users, data center electricity consumption has grown more moderately, rising from 1% of global electricity use in 2010 to 2% in 2025. Much of this is thanks to efficiency gains, including those enabled by AI.

AI systems analyze operational data in data centers – including workloads, temperature, cooling efficiency and energy use – to spot energy-hungry tasks. It adjusts computing resources to match demand and optimizes cooling. This lets data centers run smoothly without wasting electricity.

At Microsoft, AI is improving energy efficiency by using predictive analytics to schedule computing tasks. This lets servers enter low-power modes during periods of low demand, saving electricity during slower times. Meta uses AI to control cooling and airflow in its data centers. The systems stay safe while using less energy than they might otherwise.

In Frankfurt, Germany, Equinix uses AI to manage cooling and adjust energy use at its data center based on real-time weather. This improved operational efficiency by 9%, The New York Times reported.

An overhead view shows a power substation with wires and equipment.
Artificial intelligence systems use a lot of energy, but they can also analyze energy use to find efficiencies.
Joe Raedle/Getty Images

Energy and fuels

Energy companies are using AI to boost efficiency and cut emissions. They deploy drones with cameras to inspect pipelines. AI systems analyze the images to more quickly detect corrosion, cracks, dents and leaks, which allows problems to be addressed before they escalate, improving overall safety and reliability.

Shell has AI systems that monitor methane emissions from its facilities by analyzing methane concentrations and wind data, such as speed and direction. This helps the system track how methane disperses, enabling it to pinpoint emission sources and optimize energy use. By identifying the largest leaks quickly, the system allows targeted maintenance and operational adjustments to further reduce emissions. Using that technology, the company says it aims to nearly eliminate methane leaks by 2030.

AI could speed up innovation in clean energy by improving solar panels, batteries and carbon-capture systems. In the longer term, it could enable major breakthroughs, including advanced biofuels or even usable nuclear fusion, while helping track and manage carbon-absorbing resources such as forests, wetlands and carbon storage facilities.

Shell uses AI across its operations to cut emissions. Its process optimizer for liquefied natural gas analyzes sensor data to find more efficient equipment settings, boosting energy efficiency and reducing emissions.

People talk in a room with many computer screens and large diagrams on the wall.
Buildings in central Copenhagen are heated in a coordinated system with a complex control room.
Bernd von Jutrczenka/picture alliance via Getty Images

Buildings and district heating

The energy needed to heat, cool and power buildings is responsible for roughly 28% of total global emissions. AI initiatives are starting to reduce building emissions through smart management and predictive optimization.

In downtown Copenhagen, for instance, the local utility company HOFOR deployed thousands of sensors tracking temperatures, humidity and building energy flows. The system uses information about each building to forecast heating needs 24 hours in advance and automatically adjust supply to match demand.

The Copenhagen system was first piloted in schools and multifamily housing, with support from the Nordic Smart City Network and climate-innovation grants. It has since expanded to dozens of sites. Results were clear: Across participating buildings, energy use fell 15% to 25%, peak heating demand dropped by up to 30%, and carbon dioxide emissions decreased by around 10,000 tonnes per year.

AI can also help households and offices save energy. Smart home systems optimize heating, cooling and appliance use. Researchers at the Lawrence Berkeley National Laboratory found that by adopting AI, medium-sized office buildings in the U.S. could reduce energy use by 21% and cut carbon dioxide emissions by 35%.

Aviation

About 2% of all human-caused carbon dioxide emissions in 2023 came from aviation, which emitted about 882 megatons of carbon dioxide.

Contrails, the thin ice clouds formed when aircraft exhaust freezes at cruising altitudes, contribute more than one-third of aviation’s overall warming effect by trapping heat in the atmosphere. AI can optimize flight routes and altitudes in real time to reduce contrail formation by avoiding areas where the air is more humid and therefore more likely to produce contrails.

Airlines have also used AI to improve fuel efficiency. In 2023, Alaska Airlines used 1.2 million gallons less fuel by using AI to analyze weather, wind, turbulence, airspace restrictions and traffic to recommend the most efficient routes, saving around 5% on fuel and emissions for longer flights.

In short, AI affects the environment in both positive and negative ways. Already, it has helped industries cut energy use, lower emissions and use water more efficiently. Expanding these solutions could drive a cleaner, more sustainable planet.

The Conversation

Nir Kshetri 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. Despite its steep environmental costs, AI might also help save the planet – https://theconversation.com/despite-its-steep-environmental-costs-ai-might-also-help-save-the-planet-272474

Federal immigration enforcement near schools disrupts attendance, traumatizes students and damages their academic performance

Source: The Conversation – USA (2) – By Carolyn Sattin-Bajaj, Associate Professor of Education, University of California, Santa Barbara

High school students gather for an anti-ICE protest outside the state capitol in St. Paul, Minn., on Jan. 14, 2026. Octavio Jones/AFP via Getty Images

The Trump administration’s recent surge of more than 3,000 federal agents to Minneapolis and St. Paul, Minnesota, is creating ripple effects for students, teachers and parents that go well beyond ongoing protests against Immigration and Customs Enforcement and Customs and Border Protection. These protests escalated after an ICE agent shot and killed Renee Nicole Good on Jan. 7, 2026.

Some Twin Cities parents are arranging security patrols to look out for ICE agents, while others are keeping their kids home altogether. Several large Minneapolis-St. Paul school districts announced on Jan. 15 that they would offer remote learning so students could stay home.

Amy Lieberman, The Conversation U.S. education editor, spoke with Carolyn-Sattin-Bajaj, a scholar of education and immigrant youth, to better understand what regulations restrict ICE’s presence at schools – and how schools can support students and parents concerned about the recent surge of immigrant arrests and deportations in Minnesota.

A man in a green army uniform with a vest that says 'Border Patrol' stands over a person who lies face down in the snow.
U.S. Border Patrol agents detain a person near Roosevelt High School in Minneapolis on Jan. 7, 2026.
Kerem Yucel/AFP via Getty Images

What prevents ICE from walking into a school building?

The Obama administration issued a memo in 2011 that said federal officials should not conduct immigration enforcement work near sensitive locations, meaning schools and houses of worship. The Biden administration also had this policy in place.

President Donald Trump revoked this memo in January 2025. So now, schools are no longer off-limits to federal immigration agencies, including ICE.

That doesn’t mean ICE or Border Patrol agents can march into a school building to arrest someone. While these officers can freely enter public areas of a school, like a parking lot or lobby, school officials are not legally obligated to admit ICE agents into private spaces like classrooms. ICE officers can enter a classroom if they show a valid federal judicial warrant, signed by a judge – or if there are extreme circumstances that allow them to legally circumvent having a warrant.

School officials are also not required to release information about which kids are enrolled at their school or not, and schools do not collect information about students’ immigration status, so that data cannot be shared.

Some school districts have been developing or revising protocols on how to respond if ICE comes to their schools. A lot of these protocols
include recommendations on naming a district superintendent or another local official as the point person for ICE.

How unprecedented is it for ICE to arrest people outside or inside a school?

ICE’s presence at – or near – schools has significantly increased under the second Trump administration.

We have seen violence on school grounds, with ICE attacking students and protesters at Roosevelt High School on Jan. 7 in Minneapolis. In Crystal, Minn., a student’s parent was arrested by ICE personnel on Jan. 14 while waiting for their child at a bus stop.

Even just the threat of ICE agents approaching and arresting people en route to school, or at a school itself, is changing people’s behavior. Some parents in Minnesota and other places no longer take their children to and from school, and have to find other ways to get their kids there. This also affects how many people come to community events and activities held at school.

At one California middle school, the annual moving-up ceremony for students typically held outside had to be delayed in June 2025 after there was a credible rumor that ICE was planning to show up. The district had procedures in place. Because the event was held in an open public space, administrators were stationed at every entrance in case ICE agents turned up – though they didn’t. However, some graduates did not have any relatives there to watch them watch across the stage during the ceremony.

What other considerations are at the forefront of school administrators’ minds in regard to ICE?

The question that is top of mind for many district administrators, school leaders, teachers and other school personnel is “What happens if ICE shows up at our school?”

I think it is important that districts and schools have a clear plan in place that is widely communicated to all adults working in schools, and to students and parents. This should be paired with straightforward and recurrent training for educators on what they might expect if ICE comes to their schools and how to put their schools’ plans in place.

Yet, considering what to do if ICE comes to a school is just the tip of the iceberg. There are approximately 1.5 million children under 18 who are undocumented immigrants and about 4.4 million U.S.-born children who are citizens but have at least one undocumented parent. Many of these students are experiencing significant hardship, including interruptions to their schooling, and other forms of instability that affect their ability to learn and overall well-being.

A man wearing a green vest and pants stands near another man also in a green uniform, in front of a red brick building.
U.S. Border Patrol Commander Gregory Bovino argues with protesters near Roosevelt High School in Minneapolis on Jan. 7, 2026.
Kerem Yucel/AFP via Getty Images

What does your research show on the effects immigration enforcement can have on these students?

My research in seven large California school districts, conducted in 2021, showed that immigration arrests were linked to declines in students’ academic achievement, attendance and other measures of a school’s climate and safety for these students. The biggest declines were among Latino students, especially those who were English language learners.

In another 2023 study of an immigration workplace raid in Texas, a colleague and I found increased student absenteeism, declines in reading and math test scores, and sharp rises in the number of high school students leaving the district. Most often, it was the Latino and multilingual students enrolled in schools in the four counties closest to the raid who were not attending school immediately after the event, or experienced declining test scores.

These consequences persisted. Some of these students were less likely than others to later enroll in four-year colleges. Significantly, not just students who are most likely to have relatives targeted for deportation experienced these effects.

My own research and that of other scholars also show that many teachers are not well prepared for the current realities. But they are eager to know more about their immigrant students’ rights, the resources available to them and how they can serve as allies and advocates.

I believe that to best support students during these troubling times, teachers need better training and guidance on how to navigate challenging conversations about immigration enforcement threats, and how to deal with students’ (and their own) anxiety, uncertainty and trauma.

The Conversation

Carolyn Sattin-Bajaj receives funding from the University of California, Santa Barbara and the Spencer Foundation

ref. Federal immigration enforcement near schools disrupts attendance, traumatizes students and damages their academic performance – https://theconversation.com/federal-immigration-enforcement-near-schools-disrupts-attendance-traumatizes-students-and-damages-their-academic-performance-273325

Why ‘unwinding’ with screens may be making us more stressed – here’s what to try instead

Source: The Conversation – USA (3) – By Robin Pickering, Professor and Chair of Public Health, Gonzaga University

Using multiple digital devices at once can be highly distracting and overstimulating. Riska/E+ via Getty Images

As Americans increasingly report feeling overwhelmed by daily life, many are using self-care to cope. Conversations and social media feeds are saturated with the language of “me time,” burnout, boundaries and nervous system regulation.

To meet this demand, the wellness industry has grown into a multitrillion-dollar global market. Myriad providers offer products, services and lifestyle prescriptions that promise calm, balance and restoration.

Paradoxically, though, even as interest in self-care continues to grow, Americans’ mental health is getting worse.

I am a professor of public health who studies health behaviors and the gap between intentions and outcomes. I became interested in this self-care paradox recently, after I suffered from a concussion. I was prescribed two months of strictly screen-free cognitive rest – no television, email, Zooming, social media, streaming or texting.

The benefits were almost immediate, and they surprised me. I slept better, had a longer attention span and had a newfound sense of mental quiet. These effects reflected a well-established principle in neuroscience: When cognitive and emotional stimuli decrease, the brain’s regulatory systems can recover from overload and chronic stress.

Obviously, most people can’t go 100% screen-free for days, much less months, but the underlying principle offers a powerful lesson for practicing effective self-care.

A nation under strain

Americans’ self-rated mental health is now at the lowest point since Gallup started tracking this issue in 2001. National surveys consistently detect high levels of stress and emotional strain.

Roughly one-third of U.S. adults report feeling overwhelmed most days. Sleep disruption, anxiety, poor concentration and emotional exhaustion are widespread, particularly among young adults and women.

Chronic disease patterns mirror this strain. When daily stress becomes chronic, it can trigger biological changes that increase the risk of long-term conditions like heart disease and diabetes. The Centers for Disease Control and Prevention reports that 6 in 10 U.S. adults live with at least one chronic condition, and 4 in 10 live with multiple chronic conditions.

Stress triggers physiological responses that can lead to a range of symptoms.

How people try to cope

Many Americans say they actively practice self-care in everyday life. For example, they describe taking mental health days, protecting personal time, setting boundaries around work and prioritizing rest and leisure.

The problem lies in how they use that leisure time.

Over the past 22 years, the U.S. Bureau of Labor Statistics’ American Time Use Survey has consistently found that watching television is the most popular leisure activity for U.S. adults. Americans spend far more time watching TV than exercising, spending time with friends or practicing reflection through activities like yoga. Other common self-care activities include watching movies and gaming.

Modern leisure time increasingly includes smartphone use. Surveys suggest that mobile phones have become the dominant screen for many Americans, with adults spending several hours per day on their phones.

For many adults, checking social media or watching short videos has become a default relaxation behavior layered on top of traditional screen use. This practice is often referred to as second screening.

Although many people turn to screen-based activities to wind down, these activities may have the opposite effect biologically.

Why modern screen use feels different

Pre-internet forms of leisure often involved activities such as watching scheduled television programs, listening to radio broadcasts or reading books and magazines. For all of these pastimes, the content followed a predictable sequence with natural stopping points.

Today’s digital media environment looks very different. People routinely engage with multiple screens at once, respond to frequent notifications and switch rapidly between several streams of content. These environments continuously require users to split their attention, engage their emotions and make decisions.

This type of mental multitasking draws on the same neural systems people are often attempting to rest with leisure. The result is a far more fragmented and cognitively demanding environment than in the past.

Americans now spend approximately six to seven hours per day on screens across multiple devices. Splitting attention between more than one screen at a time, such as using the phone while watching television, is common. This juggling exposes peoples’ brains to multiple streams of sensory and emotional input simultaneously.

Survey data also suggests that Americans may check their phones roughly 200 times per day. In doing so, they repeatedly pull their attention back to screens during routine moments.

Modern digital platforms are designed to maximize engagement. Algorithms tend to prioritize emotionally arousing content, particularly anger, anxiety and outrage. These feelings drive clicks, sharing and time spent on platforms. Research has shown that this design is associated with higher stress, distraction and cognitive load.

When ‘rest’ doesn’t restore

Against the backdrop of daily hassles and competing demands, it can feel like relief to flip on the TV. Practices such as streaming or so-called bed-rotting – spending extended periods in bed while scrolling – often are framed as a form of radical rest or self-care.

Other common coping behaviors include leaving the television on as background noise, scrolling between tasks throughout the day or using phones during meals and conversations. These strategies can feel restful because they temporarily reduce external demands and decision-making.

However, pairing rest with screen use may undermine the very restoration that people are seeking. Digital media stimulate attention, emotion and sensory processing. Even while people are sitting or lying still, being onscreen can keep their nervous systems in a heightened state of arousal. It may look like downtime, but it doesn’t create the biological conditions for restoration.

How to wind down

Evidence suggests that mental relief comes not from adding new coping strategies, but from reducing the number of demands placed on the brain.

Here are some evidence-based strategies that support genuine restoration:

The goal is to intentionally reduce mental load, not to abandon all digital devices.

To improve well-being in our overstimulated society, it’s important to understand the difference between feeling as though you are unwinding and actually allowing your brain and body to recover. In my view, fewer screens, fewer inputs, fewer emotional demands and more protected time for genuine cognitive rest are important components of an effective wellness strategy.

The Conversation

Robin Pickering 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 ‘unwinding’ with screens may be making us more stressed – here’s what to try instead – https://theconversation.com/why-unwinding-with-screens-may-be-making-us-more-stressed-heres-what-to-try-instead-272887

Antibiotic resistance could undo a century of medical progress – but four advances are changing the story

Source: The Conversation – USA (3) – By André O. Hudson, Dean of the College of Science, Professor of Biochemistry, Rochester Institute of Technology

Scientists are fighting back against antibiotic resistance with new strategies and tools. wildpixel/iStock via Getty Images Plus

Imagine going to the hospital for a bacterial ear infection and hearing your doctor say, “We’re out of options.” It may sound dramatic, but antibiotic resistance is pushing that scenario closer to becoming reality for an increasing number of people. In 2016, a woman from Nevada died from a bacterial infection that was resistant to all 26 antibiotics that were available in the United States at that time.

The U.S. alone sees more than 2.8 million antibiotic-resistant illnesses each year. Globally, antimicrobial resistance is linked to nearly 5 million deaths annually.

Bacteria naturally evolve in ways that can make the drugs meant to kill them less effective. However, when antibiotics are overused or used improperly in medicine or agriculture, these pressures accelerate the process of resistance.

As resistant bacteria spread, lifesaving treatments face new complications – common infections become harder to treat, and routine surgeries become riskier. Slowing these threats to modern medicine requires not only responsible antibiotic use and good hygiene, but also awareness of how everyday actions influence resistance.

Since the inception of antibiotics in 1910 with the introduction of Salvarsan, a synthetic drug used to treat syphilis, scientists have been sounding the alarm about resistance. As a microbiologist and biochemist who studies antimicrobial resistance, I see four major trends that will shape how we as a society will confront antibiotic resistance in the coming decade.

1. Faster diagnostics are the new front line

For decades, treating bacterial infections has involved a lot of educated guesswork. When a very sick patient arrives at the hospital and clinicians don’t yet know the exact bacteria causing the illness, they often start with a broad-spectrum antibiotic. These drugs kill many different types of bacteria at once, which can be lifesaving — but they also expose a wide range of other bacteria in the body to antibiotics. While some bacteria are killed, the ones that remain continue to multiply and spread resistance genes between different bacterial species. That unnecessary exposure gives harmless or unrelated bacteria a chance to adapt and develop resistance.

In contrast, narrow-spectrum antibiotics target only a small group of bacteria. Clinicians typically prefer these types of antibiotics because they treat the infection without disturbing bacteria that are not involved in the infection. However, it can take several days to identify the exact bacteria causing the infection. During that waiting period, clinicians often feel they have no choice but to start broad-spectrum treatment – especially if the patient is seriously ill.

Close-up of two pill capsules inscribed AOMXY 500 in a blister packet
Amoxicillin is a commonly prescribed broad-spectrum antibiotic.
TEK IMAGE/Science Photo Library via Getty Images

But new technology may fast-track identification of bacterial pathogens, allowing medical tests to be conducted right where the patient is instead of sending samples off-site and waiting a long time for answers. In addition, advances in genomic sequencing, microfluidics and artificial intelligence tools are making it possible to identify bacterial species and effective antibiotics to fight them in hours rather than days. Predictive tools can even anticipate resistance evolution.

For clinicians, better tests could help them make faster diagnoses and more effective treatment plans that won’t exacerbate resistance. For researchers, these tools point to an urgent need to integrate diagnostics with real-time surveillance networks capable of tracking resistance patterns as they emerge.

Diagnostics alone will not solve resistance, but they provide the precision, speed and early warning needed to stay ahead.

2. Expanding beyond traditional antibiotics

Antibiotics transformed medicine in the 20th century, but relying on them alone won’t carry humanity through the 21st. The pipeline of new antibiotics remains distressingly thin, and most drugs currently in development are structurally similar to existing antibiotics, potentially limiting their effectiveness.

To stay ahead, researchers are investing in nontraditional therapies, many of which work in fundamentally different ways than standard antibiotics.

One promising direction is bacteriophage therapy, which uses viruses that specifically infect and kill harmful bacteria. Others are exploring microbiome-based therapies that restore healthy bacterial communities to crowd out pathogens.

Researchers are also developing CRISPR-based antimicrobials, using gene-editing tools to precisely disable resistance genes. New compounds like antimicrobial peptides, which puncture the membranes of bacteria to kill them, show promise as next-generation drugs. Meanwhile, scientists are designing nanoparticle delivery systems to transport antimicrobials directly to infection sites with fewer side effects.

Beyond medicine, scientists are examining ecological interventions to reduce the movement of resistance genes through soil, wastewater and plastics, as well as through waterways and key environmental reservoirs.

Many of these options remain early-stage, and bacteria may eventually evolve around them. But these innovations reflect a powerful shift: Instead of betting on discovering a single antibiotic to address resistance, researchers are building a more diverse and resilient tool kit to fight antibiotic-resistant pathogenic bacteria.

3. Antimicrobial resistance outside hospitals

Antibiotic resistance doesn’t only spread in hospitals. It moves through people, wildlife, crops, wastewater, soil and global trade networks. This broader perspective that takes the principles of One Health into account is essential for understanding how resistance genes travel through ecosystems.

Researchers are increasingly recognizing environmental and agricultural factors as major drivers of resistance, on par with misuse of antibiotics in the clinic. These include how antibiotics used in animal agriculture can create resistant bacteria that spread to people; how resistance genes in wastewater can survive treatment systems and enter rivers and soil; and how farms, sewage plants and other environmental hot spots become hubs where resistance spreads quickly. Even global travel accelerates the movement of resistant bacteria across continents within hours.

Antibiotic misuse in agriculture is a significant contributor to antibiotic resistance.

Together, these forces show that antibiotic resistance isn’t just an issue for hospitals – it’s an ecological and societal problem. For researchers, this means designing solutions that cross disciplines, integrating microbiology, ecology, engineering, agriculture and public health.

4. Policies on what treatments exist in the future

Drug companies lose money developing new antibiotics. Because new antibiotics are used sparingly in order to preserve their effectiveness, companies often sell too few doses to recoup development costs even after the Food and Drug Administration approves the drugs. Several antibiotic companies have gone bankrupt for this reason.

To encourage antibiotic innovation, the U.S. is considering major policy changes like the PASTEUR Act. This bipartisan bill proposes creating a subscription-style payment model that would allow the federal government up to US$3 billion to pay drug manufacturers over five to 10 years for access to critical antibiotics instead of paying per pill.

Global health organizations, including Médecins Sans Frontières (Doctors Without Borders), caution that the bill should include stronger commitments to stewardship and equitable access.

Still, the bill represents one of the most significant policy proposals related to antimicrobial resistance in U.S. history and could determine what antibiotics exist in the future.

The future of antibiotic resistance

Antibiotic resistance is sometimes framed as an inevitable catastrophe. But I believe the reality is more hopeful: Society is entering an era of smarter diagnostics, innovative therapies, ecosystem-level strategies and policy reforms aimed at rebuilding the antibiotic pipeline in addition to addressing stewardship.

For the public, this means better tools and stronger systems of protection. For researchers and policymakers, it means collaborating in new ways.

The question now isn’t whether there are solutions to antibiotic resistance – it’s whether society will act fast enough to use them.

The Conversation

André O. Hudson, PhD. receives funding from the National Institutes of Health and the National Science Foundation.

ref. Antibiotic resistance could undo a century of medical progress – but four advances are changing the story – https://theconversation.com/antibiotic-resistance-could-undo-a-century-of-medical-progress-but-four-advances-are-changing-the-story-269860

Valentino: the Italian designer who broke into French haute couture with his elegant style and signature red

Source: The Conversation – UK – By Naomi Braithwaite, Associate Professor in Fashion and Material Culture, Nottingham Trent University

On the advent of the seasonal haute couture catwalk shows in Paris, the fashion industry mourns the loss of another iconic designer. Valentino Garavani has died at the age of 93. He was the creator of the House of Valentino and renowned as one of Italy’s greatest couturiers.

For Valentino, fashion was about creating beautiful dresses. He was famously quoted as saying: “I know what women want. They want to be beautiful.” However, his notions of “ideal beauty” were met with some controversy through his career, in particular his defence of skinny models on the runway in 2007.

After a childhood in Italy surrounded by and inspired by fashion, a young Valentino moved to Paris in 1950 to study at the prestigious École des Beaux Arts
and Chambre Syndicale de la Couture Parisienne.

It was during this time that he apprenticed with couturiers, including Balenciaga and Guy Laroche. Haute couture, defined as “high dressmaking”, is distinct from ready-to-wear fashion. The couturier is a designer who uses bespoke techniques and makes one-off garments for individual customers. Couture garments are made by hand with specialised techniques and luxurious materials.

In 1959, following the founding of his design studio in Rome, Valentino designed his first ready-to-wear collection. This collection included strapless mid-length dresses in block colours and showcased what was to become known as the eponymous Valentino style. This was fashion that embodied elegance and sophistication with meticulous attention paid to accentuating the female silhouette through the use of sumptuous materials.

In 1960, Valentino opened the luxury fashion house, Valentino, with the support of his business and life partner Giancarlo Giammetti. It was his first couture show in 1962 at The Pitti Palace in Florence that was to launch Valentino onto the global fashion stage. Critics were astounded by his exquisite tailored dresses in sumptuous materials, including a parade of red dresses that were to become his signature look. The looks on show exuded elegance and showcased Valentino’s ability to inject a modern stance on classic styling..

The success of Valentino’s 1962 show was reinforced soon after when, French Vogue dedicated their front cover to an Italian designer for the first time. From then on Valentino became the designer to the stars, creating iconic looks for celebrities including Jackie Kennedy and Audrey Hepburn. Kennedy chose a Valentino gown to marry her second husband, Aristotle Onassis, in 1968.

In 1973, Valentino became the first Italian designer to be welcomed into the Fédération de la Haute Couture et de la Mode (the Federation of Haute Couture and Fashion). This was unusual for an organisation which privileged couture as part of France’s heritage. Membership is restricted to those who demonstrate outstanding craftsmanship and creativity. The federation’s recognition of Valentino’s contribution to haute couture was a testament to the techniques that he gained in Paris as a student and apprentice of couture fashion.

Valentino became the first Italian to present haute couture on Paris runways. Undoubtedly, his success in Paris paved the way for Italy’s other legendary designers, Giorgio Armani and Gianni Versace, to show at haute couture week.

Over the years the Valentino brand has expanded to include menswear and accessories. In 1998, the label was sold to an Italian holding company for an estimated US$300 million (£223 million), with Valentino continuing as designer until his retirement in 2008.

Valentino will probably be most renowned for his iconic red dresses. Red was first featured in Valentino’s 1959 collection with the La Fiesta dress. The colour became a signature style throughout his career.

“Rosso Valentino” received a registered trademark in 1985 and has its own pantone made from a formula that blends 100% magenta, with 100% yellow and 10% black. When Valentino retired in 2008, his last catwalk show was held at the Musee Rodin in Paris, and for the finale the models all wore dresses in his signature red.

Today Valentino is under the creative direction of Alessandro Michele who, following news of the death of Valentino, reflected on him as “an almost mythical figure”.

The death of Valentino follows a few months after the loss of Giorgio Armani. Valentino and Armani were both creative visionaries who placed Italian fashion on the global stage. Their fashion houses were built through their hard graft and creative genius and they will be remembered simultaneously as a leading generation of designers from a time before fashion was significantly commercialised and run by conglomerates.

The Italian fashion industry has certainly taken a huge hit with the loss of two of its most legendary designers. However, both Valentino and Armani have left an undeniable mark on fashion, that will continue to define Italy’s dominance in the global fashion industry.

Reflecting on a life in fashion, Valentino’s approach to silhouette, fabric and his distinctive signature red colour, reveals a designer who leaves a huge mark on fashion globally too. To look back at his work is to see that he undoubtedly fulfilled his wish to make women beautiful.


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The Conversation

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

ref. Valentino: the Italian designer who broke into French haute couture with his elegant style and signature red – https://theconversation.com/valentino-the-italian-designer-who-broke-into-french-haute-couture-with-his-elegant-style-and-signature-red-273948

Trump’s stated reasons for taking Greenland are wrong – but the tactics fit with the plan to limit China’s economic interests

Source: The Conversation – USA – By Steven Lamy, Professor Emeritus of Political Science and International Relations and Spatial Sciences, USC Dornsife College of Letters, Arts and Sciences

People protest against U.S. President Donald Trump’s policy toward Greenland in front of the U.S. consulate in Nuuk, Greenland, on Jan. 17, 2026. AP Photo/Evgeniy Maloletka

In 2019, during his first term, U.S. President Donald Trump expressed a desire to buy Greenland, which has been a part of Denmark for some 300 years. Danes and Greenlanders quickly rebuffed the offer at the time.

During Trump’s second term, those offers have turned to threats.

Trump said on his social media platform Truth Social in late December 2024 that, for purposes of national security, U.S. control over Greenland was a necessity. The president has continued to insist on the national security rationale into January 2026. And he has refused to rule out the use of military force to control Greenland.

From my perspective as an international relations scholar focused on Europe, Trump’s national security rationale doesn’t make sense. Greenland, like the U.S., is a member of NATO, which provides a collective defense pact, meaning member nations will respond to an attack on any alliance member. And because of a 1951 defense agreement between the U.S. and Denmark, the U.S. can already build military installations in Greenland to protect the region.

Trump’s 2025 National Security Strategy, which stresses control of the Western Hemisphere and keeping China out of the region, provides insight into Trump’s thinking.

US interests in Greenland

The United States has tried to acquire Greenland several times.

In 1867, Secretary of State William Seward commissioned a survey of Greenland. Impressed with the abundance of natural resources on the island, he pushed to acquire Greenland and Iceland for US$5.5 million – roughly $125 million today.

But Congress was still concerned about the purchase of Alaska that year, which Seward had engineered. It had seen Alaska as too cold and too distant from the rest of the U.S. to justify spending $7.2 million – roughly $164 million today – although Congress ultimately agreed to do it. There was not enough national support for another frozen land.

In 1910, the U.S. ambassador to Denmark proposed a complex trade involving Germany, Denmark and the United States. Denmark would give the U.S. Greenland, and the U.S. would give Denmark islands in the Philippines. Denmark would then give those islands to Germany, and Germany would return Schleswig-Holstein – Germany’s northernmost state – to Denmark.

But the U.S. quickly dismissed the proposed trade as too audacious.

During World War II, Nazi Germany occupied Denmark, and the U.S. assumed the role of protector of both Greenland and Iceland, both of which belonged to Denmark at the time. The U.S. built airstrips, weather stations and radar and communications stations – five on Greenland’s east coast and nine on the west coast.

A military base is seen in front of a snowy hillside.
The Pituffik Space Base, formerly Thule Air Base, is pictured in northern Greenland on Oct. 4, 2023.
Thomas Traasdahl/Ritzau Scanpix/AFP via Getty Images

The U.S. used Greenland and Iceland as bases for bombers that attacked Germany and German-occupied areas. Greenland had a high value for military strategists because of its location in the North Atlantic – to counter Nazi threats to Allied shipping lanes and protect transatlantic routes, and because it was a midpoint for refueling U.S. aircraft. Greenland’s importance also rested on its deposits of cryolite, useful for making aluminum.

In 1946, the Truman administration offered to buy Greenland for $100 million, as U.S. military leaders thought it would play a critical role in the Cold War.

The secret U.S. project Operation Blue Jay at the beginning of the Cold War resulted in the construction of Thule Air Base in northwestern Greenland, which allowed U.S. bombers to be closer to the Soviet Union. Renamed Pituffik Space Base, today it provides a 24/7 missile warning and space surveillance facility that is critical to NATO and U.S. security strategy.

At the end of World War II, Denmark recognized Greenland as one of its territories. In 1953, Greenland gained constitutional rights and became a country within the Kingdom of Denmark. Greenland was assigned self-rule in 1979, and by 2009 it became a self-governing country, still within the Kingdom of Denmark, which includes Denmark, Greenland and the Faroe Islands.

Denmark recognizes the government of Greenland as an equal partner and recently gave it a more significant role as the first voice for Denmark in the Arctic Council, which promotes cooperation in the Arctic.

What the US may want

The Trump administration’s 2025 National Security Strategy identifies three threats in the Western Hemisphere: migration, drugs and crimes, and China’s increasing influence.

Two of those threats are irrelevant when considering Greenland. Greenlandic people are not migrating to the U.S., and they are not drug traffickers. However, Greenland is rich in rare earth minerals, including neodymium, dysprosium, graphite, copper and lithium.

Additionally, China seeks to establish mining interests in Greenland and the Arctic as part of its Polar Silk Road initiative. China had offered to build an infrastructure for Greenland, including improving the airport, until Denmark stepped in and offered airport funding. And China has worked with Australian companies to secure mining opportunities on the island.

A U.S. Air Force helicopter flies over snow.
A U.S. Air Force helicopter flies near Thule Air Base in Greenland in 1955.
James McAnally/Archive Photos/Getty Images

Those rare earth minerals appeal to the European Union, too. The EU lists some 30 raw materials that are essential for their economies. Twenty-five are in Greenland.

The Trump administration has made it clear that controlling these minerals is a national security issue, and the president wants to keep them away from China.

Figures vary, but it is estimated that over 60% of rare earth elements or minerals are currently mined in China. China also refines some 90% of rare earths. This gives China tremendous leverage in trade talks. And it results in a dangerous vulnerability for the U.S. and other nation states seeking to modernize their economies. With few suppliers of these rare earth elements, the political and economic costs of securing them are high.

Greenland has only two operating mines. One is the Tan Breez project in southern Greenland. It produces 17 metals, including terbium and neodymium, that are used in high-strength magnets used in many green technologies and in aircraft manufacturing, including for the F-35 fighter planes.

Consider for a moment that Trump is not interested in owning Greenland.

Instead, he is using this threatening position to secure promises from the Greenlandic government to make economic deals with the U.S. and not China. Thus, Trump’s threats could be less about national security and much more about eliminating competition from China and securing wealth for U.S. interests.

This form of coercive diplomacy threatens the political and economic development of not only Greenland but Europe. In recent interviews, Trump has made it clear that he does not respect international law and the sovereignty of countries. His position, I believe, undermines the international order and removes the U.S. as a responsible leader of that framework established after World War II.

The Conversation

Steven Lamy 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. Trump’s stated reasons for taking Greenland are wrong – but the tactics fit with the plan to limit China’s economic interests – https://theconversation.com/trumps-stated-reasons-for-taking-greenland-are-wrong-but-the-tactics-fit-with-the-plan-to-limit-chinas-economic-interests-273548

How the U.S. withdrawal from WHO could affect global health powers and disease threats

Source: The Conversation – Canada – By Mitchell L. Hammond, Assistant Professor of History, Western University

Hours after Donald Trump began his second term as United States president on Jan. 20, 2024, he signed an executive order to end American membership in the World Health Organization (WHO) after one year. This restarted a process that the first Trump administration initiated in July 2020 but was reversed by Joe Biden.

The withdrawal is set to take effect this week, although WHO officials may not officially accept it because the U.S. has unpaid dues from the last two years. No matter how events play out, the rift signals the start of an uncertain new era in global public health.

In the withdrawal announcement, the Trump administration cited the WHO’s “mishandling” of the COVID-19 pandemic and its inability to remain independent from the political influence of member states. This reflected Trump’s belief that the WHO leadership favoured China in early 2020 by praising its initial COVID response while faulting the U.S. for closing its border to Chinese travellers.

Other observers acknowledged the need for reform of the WHO’s cumbersome bureaucratic structure and criticized its inability to translate scientific research about COVID into useful guidance about masking and social distancing.

Such criticisms should not obscure the WHO’s enormous contribution to global health or how U.S. interests have been intertwined with its successes. Viewed historically, its great strength lies in sustained collaboration rather than short-term emergency response.

Vaccine diplomacy

In my research for Epidemics and the Modern World and its forthcoming revision, I have explored how the U.S. conducted “vaccine diplomacy” in developing countries. After the Second World War, the U.S. discerned an alignment between its strategic objectives and the soft power it gained from campaigns against epidemic diseases and childhood immunization programs.

For example, in 1967, American funding and leadership encouraged the start of the WHO’s Intensified Smallpox Eradication Program (ISEP) in African countries. This work involved collaboration with global rivals such as the Soviet Union, which contributed large quantities of freeze-dried smallpox vaccine.

When the ISEP began, at least 1.5 million people worldwide died from smallpox annually. Only 13 years later, the WHO declared the disease eradicated from nature in 1980. This success encouraged efforts to eradicate polio, which accelerated after 1988 when the WHO launched the Global Polio Eradication Initiative with support from the United States Centers for Disease Control and Prevention and other partners.

Another important collaboration began in 1974 when the WHO and international partners launched the Expanded Program on Immunization to help prevent six childhood diseases (polio, diphtheria, pertussis, tuberculosis, measles and tetanus).

After 1985, the United States Agency for International Development (USAID) invested billions of dollars in the program. Global childhood immunization levels reached 80 per cent by the early 1990s and continued to pay health dividends thereafter.

An analysis published last year in the Lancet estimated that, in the last 20 years, USAID-funded programs had helped prevent over 90 million deaths globally, including 30 million deaths among children.

Dismantling global influence

In public health, as in other arenas, the Trump administration has discarded participation in global alliances and instead sought bilateral agreements with other countries.

By July 2025, the Trump administration had formally dismantled USAID and cancelled funding for more than 80 per cent of its programs. Modelling conducted by Boston University epidemiologist Brooke Nichols suggests the lapsed programs have already caused roughly 750,000 deaths, mostly among children.




Read more:
International aid groups are dealing with the pain of slashed USAID funding by cutting staff, localizing and coordinating better


The U.S. has also already begun to cede influence over the objectives of global health programs. At the World Health Assembly in May 2025, the U.S. did not sign the WHO Pandemic Agreement intended to foster collaboration among governments, international agencies and philanthropies after the COVID-19 pandemic.

At that same meeting, China pledged to increase its voluntary contributions to the WHO to US$500 million over the next five years. Practically overnight, China will replace the U.S. as the WHO’s largest national contributor and undoubtedly steer priorities in global health programs towards its interests.

Disease monitoring and global threats

A more immediate concern is the disruption to surveillance for ongoing disease challenges and emergent threats.

Since 1952, the WHO’s Global Influenza Surveillance and Response System has provided a platform for monitoring of cases and the sharing of data and viral samples. Information from institutions in 131 countries contributes to recommendations for the composition of seasonal influenza virus vaccines. The U.S. may be left out of this global system, which will hamper efforts to match vaccines to the circulating strains of flu.

The WHO also dispatches response teams around the world for outbreaks of numerous diseases such as mpox, dengue, Ebola virus disease or Middle East respiratory syndrome. The exclusion of American scientists will hamper these efforts and diminish the nation’s capacity to protect itself.

The policy shift in the U.S. poses challenges for Canada both as its northern neighbour and as a strong financial supporter of the WHO. The recent spread of measles within Canada, which resulted in loss of the country’s elimination status, reminds us that disease outbreaks are inevitable but progress in public health is not.

Renewed support of the WHO and other multilateral efforts, although desirable, should be matched by expanded investment in programs for disease surveillance and research, vaccine procurement and public health communication. Federal and provincial governments and the Public Health Agency of Canada will all have roles to play as Canada faces disease threats in a rapidly changing world.

The Conversation

Mitchell L. Hammond does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. How the U.S. withdrawal from WHO could affect global health powers and disease threats – https://theconversation.com/how-the-u-s-withdrawal-from-who-could-affect-global-health-powers-and-disease-threats-273768

The world is in water bankruptcy, UN scientists report – here’s what that means

Source: The Conversation – USA (2) – By Kaveh Madani, Director of the Institute for Water, Environment and Health, United Nations University

The world is now using so much fresh water amid the consequences of climate change that it has entered an era of water bankruptcy, with many regions no longer able to bounce back from frequent water shortages.

About 4 billion people – nearly half the global population – live with severe water scarcity for at least one month a year, without access to sufficient water to meet all of their needs. Many more people are seeing the consequences of water deficit: dry reservoirs, sinking cities, crop failures, water rationing and more frequent wildfires and dust storms in drying regions.

Water bankruptcy signs are everywhere, from Tehran, where droughts and unsustainable water use have depleted reservoirs the Iranian capital relies on, adding fuel to political tensions, to the U.S., where water demand has outstripped the supply in the Colorado River, a crucial source of drinking water and irrigation for seven states.

A woman fills containers with water from a well. cows are behind her on a dry landscape.
Droughts have made finding water for cattle more difficult and have led to widespread malnutrition in parts of Ethiopia in recent years. In 2022, UNICEF estimated that as many as 600,000 children would require treatment for severe malnutrition.
Demissew Bizuwerk/UNICEF Ethiopia, CC BY

Water bankruptcy is not just a metaphor for water deficit. It is a chronic condition that develops when a place uses more water than nature can reliably replace, and when the damage to the natural assets that store and filter that water, such as aquifers and wetlands, becomes hard to reverse.

A new study I led with the United Nations University Institute for Water, Environment and Health concludes that the world has now gone beyond temporary water crises. Many natural water systems are no longer able to return to their historical conditions. These systems are in a state of failure – water bankruptcy.

Kaveh Madani, director of the United Nations University Institute for Water, Environment and Health, explains the concept of “water bankruptcy.” TVRI World.

What water bankruptcy looks like in real life

In financial bankruptcy, the first warning signs often feel manageable: late payments, borrowed money and selling things you hoped to keep. Then the spiral tightens.

Water bankruptcy has similar stages.

At first, we pull a little more groundwater during dry years. We use bigger pumps and deeper wells. We transfer water from one basin to another. We drain wetlands and straighten rivers to make space for farms and cities.

Then the hidden costs show up. Lakes shrink year after year. Wells need to go deeper. Rivers that once flowed year-round turn seasonal. Salty water creeps into aquifers near the coast. The ground itself starts to sink.

How the Aral Sea shrank from 2000 to 2011. It was once closer to oval, covering the light-colored areas as recently as the 1980s, but overuse for agriculture by multiple countries drew it down.
NASA

That last one, subsidence, often surprises people. But it’s a signature of water bankruptcy. When groundwater is overpumped, the underground structure, which holds water almost like a sponge, can collapse. In Mexico City, land is sinking by about 10 inches (25 centimeters) per year. Once the pores become compacted, they can’t simply be refilled.

The Global Water Bankruptcy report, published on Jan. 20, 2026, documents how widespread this is becoming. Groundwater extraction has contributed to significant land subsidence over more than 2.3 million square miles (6 million square kilometers), including urban areas where close to 2 billion people live. Jakarta, Bangkok and Ho Chi Minh City are among the well-known examples in Asia.

A large sinkhole near farm fields.
A sinkhole in Turkey’s agricultural heartland shows how the landscape can collapse when more groundwater is extracted than nature can replenish.
Ekrem07, 2023, Wikimedia Commons, CC BY

Agriculture is the world’s biggest water user, responsible for about 70% of the global freshwater withdrawals. When a region goes water bankrupt, farming becomes more difficult and more expensive. Farmers lose jobs, tensions rise and national security can be threatened.

About 3 billion people and more than half of global food production are concentrated in areas where water storage is already declining or unstable. More than 650,000 square miles (1.7 million square kilometers) of irrigated cropland are under high or very high water stress. That threatens the stability of food supplies around the world.

Rows with dozens of dead almond trees lie in an open field with equipment used to remove them.
In California, a severe drought and water shortage forced some farmers in 2021 to remove crops that require lots of irrigation, including almond trees.
Robyn Beck/AFP via Getty Images

Droughts are also increasing in duration, frequency and intensity as global temperatures rise. Over 1.8 billion people – nearly 1 in 4 humans – dealt with drought conditions at various times from 2022 to 2023.

These numbers translate into real problems: higher food prices, hydroelectricity shortages, health risks, unemployment, migration pressures, unrest and conflicts.

Is the world ready to cope with water-related national security risks? CNN.

How did we get here?

Every year, nature gives each region a water income, depositing rain and snow. Think of this like a checking account. This is how much water we receive each year to spend and share with nature.

When demand rises, we might borrow from our savings account. We take out more groundwater than will be replaced. We steal the share of water needed by nature and drain wetlands in the process. That can work for a while, just as debt can finance a wasteful lifestyle for a while.

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

Those long-term water sources are now disappearing. The world has lost more than 1.5 million square miles (4.1 million square kilometers) of natural wetlands over five decades. Wetlands don’t just hold water. They also clean it, buffer floods and support plants and wildlife.

Water quality is also declining. Pollution, saltwater intrusion and soil salinization can result in water that is too dirty and too salty to use, contributing to water bankruptcy.

A map shows most of Africa, South Asia and large parts of the Western U.S. have high levels of water-related risks.
Overall water-risk scores reflect the aggregate value of water quantity, water quality and regulatory and reputational risks to water supplies. Higher values indicate greater water-related risks.
United Nations University Institute for Water, Environment and Health, based on Aqueduct 4.0, CC BY

Climate change is exacerbating the situation by reducing precipitation in many areas of the world. Warming increases the water demand of crops and the need for electricity to pump more water. It also melts glaciers that store fresh water.

Despite these problems, nations continue to increase water withdrawals to support the expansion of cities, farmland, industries and now data centers.

Not all water basins and nations are water bankrupt, but basins are interconnected through trade, migration, climate and other key elements of nature. Water bankruptcy in one area will put more pressure on others and can increase local and international tensions.

What can be done?

Financial bankruptcy ends by transforming spending. Water bankruptcy needs the same approach:

  • Stop the bleeding: The first step is admitting the balance sheet is broken. That means setting water use limits that reflect how much water is actually available, rather than just drilling deeper and shifting the burden to the future.

  • Protect natural capital – not just the water: Protecting wetlands, restoring rivers, rebuilding soil health and managing groundwater recharge are not just nice-to-haves. They are essential to maintaining healthy water supplies, as is a stable climate.

A woman pushes a wheelbarrow with a contain filled with freshwater. The ocean is behind her in the view.
In small island states like the Maldives, sea-level rise threatens water supplies when salt water gets into underground aquifers, ruining wells.
UNDP Maldives 2021, CC BY
  • Use less, but do it fairly: Managing water demand has become unavoidable in many places, but water bankruptcy plans that cut supplies to the poor while protecting the powerful will fail. Serious approaches include social protections, support for farmers to transition to less water-intensive crops and systems, and investment in water efficiency.

  • Measure what matters: Many countries still manage water with partial information. Satellite remote sensing can monitor water supplies and trends, and provide early warnings about groundwater depletion, land subsidence, wetland loss, glacier retreat and water quality decline.

  • Plan for less water: The hardest part of bankruptcy is psychological. It forces us to let go of old baselines. Water bankruptcy requires redesigning cities, food systems and economies to live within new limits before those limits tighten further.

With water, as with finance, bankruptcy can be a turning point. Humanity can keep spending as if nature offers unlimited credit, or it can learn to live within its hydrological means.

The Conversation

Nothing to disclose.

ref. The world is in water bankruptcy, UN scientists report – here’s what that means – https://theconversation.com/the-world-is-in-water-bankruptcy-un-scientists-report-heres-what-that-means-273213