Birutė Galdikas: The last of the ‘angels’ in primatology’s most extraordinary chapter

Source: The Conversation – USA (2) – By Mireya Mayor, Director of Exploration and Science Communication, Florida International University

Birute Galdikas carries an orangutan named Isabel in Borneo, Indonesia. The 2011 film ‘Born To Be Wild 3D’ followed her work. AP Photo/Irwin Fedriansyah

Primatologist Birutė Galdikas died on March 24, 2026, and an era of science that began in the forests of Tanzania, Rwanda and Borneo studying humanity’s closest living relatives more than half a century ago is coming quietly to a close. Her passing marks more than the loss of a scientist – it’s the end of one of the most extraordinary chapters in modern science.

For more than half a century, primatology had three central figures: Jane Goodall, Dian Fossey and Galdikas — often called Leakey’s Angels, after their mentor — who transformed how we understand primates and, in many ways, how we understand ourselves.

A young woman sits with orangutans playing around her in the jungle.
Birutė Galdikas, shown in 1965.
Universal Archive/Universal Images Group via Getty Images

They were sent into the field by paleoanthropologist Louis Leakey, who believed that if we understood other primates, we might better understand human evolution and human nature. It was a radical idea at the time, not only scientifically but culturally. Leakey did not send large research teams or established professors. Instead, three young women went into forests, often alone, for years at a time.

What they discovered changed science and the public imagination.

Seeing chimpanzees and apes as individuals

Before the scientists’ work, primates were often described as creatures of instinct, their behavior explained largely through simple drives for food and reproduction. After their work, people began to talk about individuals with personalities, alliances, rivalries, friendships and grief.

Goodall, Fossey and Galdikas showed that chimpanzees make tools and wage political struggles, that gorillas live in complex family groups, and that orangutans raise their young with a patience and investment that rivals that of humans. The line between humans and other primates did not disappear, but it became harder to draw cleanly.

They also changed who could be a scientist.

Three women living for years in remote forests in the 1960s and ‘70s was not normal. By succeeding, they quietly expanded the boundaries of who could lead expeditions, run field sites, publish major research and become the public face of science. Many primatologists of my generation entered a field that these women forced open.

Birutė Galdikas talks about her career.

Each of these extraordinary women shaped my life in different ways. I never met Fossey, who died in Rwanda in 1985. But watching “Gorillas in the Mist,” a movie about her work, changed the course of my life and sent me toward primatology instead of law school. Years later, as a young primatologist studying lemurs, I met Goodall at a conference; she later wrote the foreword to my book and became a mentor and friend as I navigated my own path in conservation science. I met Galdikas, a scientist at Canada’s Simon Fraser University, professionally and immediately recognized a kindred spirit – another woman who had devoted her life to the study and protection of humans’ closest animal relatives.

With their deaths – Goodall died in 2025 – it falls to those of us who were inspired by them to continue and evolve their work at a time when it has never been more difficult or more important.

But the field today’s primatologists inherited is not the same one they began.

The next generation and primates’ struggle for survival

The first generation of field primatologists went into forests full of animals to discover how primates lived. They were explorers as much as scientists, and their work had the feel of discovery in the classic sense – new behaviors, new social structures, new understandings of intelligence and culture in animals.

Their research helped reshape anthropology, psychology and evolutionary biology. They helped answer one of the oldest questions humans ask about themselves: What makes us different from other species?

Birutė Galdikas talks about the documentary ‘Born to be Wild 3D’ and her work rescuing and returning orangutans to the wild.

By the time my generation began working in the field, many of those questions had already been answered. We knew primates used tools, formed political alliances, reconciled after fights and mourned their dead. We knew they had personalities and social strategies.

The question was no longer whether primates were like us, but whether they would survive us.

This is the quiet shift that defines modern primatology. My generation now goes into forests that are smaller, more fragmented and quieter, and the work is increasingly focused on making sure those animals are still there at all.

I have spent much of my career studying lemurs in Madagascar, where this shift is impossible to ignore. Lemurs are among the most endangered group of mammals on Earth, with more than 90% of species threatened with extinction. In many parts of Madagascar, forests now exist only as isolated fragments surrounded by agriculture and human settlement. Some lemur populations survive in forest patches so small that a single fire or logging operation could eliminate them entirely.

Conservation begins with caring

These primates that captured the world’s attention are also the species most like us. They have long childhoods, complex societies, intelligence, and emotional lives that feel familiar to us. Their similarity is what made people care. And that caring, in many cases, is what has kept them from disappearing entirely.

The great achievement of Leakey’s Angels was not only what they discovered, but that they made the world care about primates.

Before the three scientists’ work, chimpanzees, gorillas and orangutans were largely abstract animals to most people – zoo exhibits, textbook illustrations, evolutionary symbols. After their work, these creatures became individuals with names, families, histories and personalities. Each of the women’s work was celebrated in films and books, including the Morgan Freeman-narrated documentary “Born to Be Wild 3D” that followed Galdikas’ orangutan rescues.

Conservation begins with caring, and caring begins with stories. They gave the world those stories.

But caring is no longer enough. We are now in an era where the most important breakthroughs in primatology may not be new discoveries about behavior, but new ways to protect habitats, connect fragmented forests, preserve genetic diversity and help humans and primates survive on the same increasingly crowded landscapes.

The work has shifted from observation to intervention, from discovery to responsibility.

Every generation of scientists inherits a different world. The generation of Jane Goodall, Dian Fossey and Birutė Galdikas inherited a world full of primates we did not yet understand. My generation has inherited a world where we understand primates very well, but are in danger of losing them anyway.

The forests are quieter now than when these three young women went into them more than half a century ago. The responsibility, however, has only grown louder.

The central question of primatology is no longer what makes us human. It is whether a species intelligent enough to understand extinction will choose to prevent it in our closest living relatives.

The Conversation

Mireya Mayor 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. Birutė Galdikas: The last of the ‘angels’ in primatology’s most extraordinary chapter – https://theconversation.com/birute-galdikas-the-last-of-the-angels-in-primatologys-most-extraordinary-chapter-279398

War in the Middle East made the case for renewables – what’s happening in each country tells a harder story

Source: The Conversation – USA (2) – By Ezgi Canpolat, Visiting Postdoctoral Scholar, Center for Middle Eastern Studies, Harvard University

Saudi Arabia has built large solar power plants while continuing to invest heavily in fossil fuels. Giuseppe Cacace/AFP via Getty Images

The oil-dependent world is in crisis. Ship traffic in the Strait of Hormuz – through which more than a quarter of global seaborne oil trade and a fifth of the world’s liquefied natural gas flow – is at a virtual standstill. Oil prices have climbed, briefly topping US$119 a barrel.

The largest release of oil from countries’ strategic reserves in history is under way, in an effort to ease prices. But even so, billions of people are dealing with surging energy prices and spiking food and fertilizer costs. Governments are scrambling for alternatives, too. To reduce energy demand, Sri Lanka has declared every Wednesday a holiday for public officials, Myanmar is limiting private vehicle use to every other day, and Bangladeshi colleges have canceled classes.

Leaders of South Korea and the European Commission have used the current energy crisis to call for accelerating the shift away from fossil fuels and toward homegrown renewable sources. U.N. Secretary-General António Guterres put it plainly in a March 10, 2026, social media post: “There are no price spikes for sunlight and no embargoes on the wind.”

I grew up in a coal-mining town in Turkey. I now study energy transitions across the Middle East and North Africa in a research project I co-lead at Harvard University. I have seen that a country’s desire to increase renewable energy is not the same as a plan to do so.

The very region embroiled in this war reveals that there is not a linear shift from fossil fuels to renewable sources. Rather, there are distinct trajectories, driven by energy dependence, fiscal pressures, governance and stability. Disruption at the Strait of Hormuz does not mean the same thing in Riyadh, Saudi Arabia, as it does in Ankara, Turkey, or Baghdad, Iraq.

The petrostates hedging both sides

For Saudi Arabia, the United Arab Emirates and Qatar, this crisis is a warning dressed as a windfall.

Oil prices have surged, which in theory means higher revenues. But the very infrastructure that produces and delivers that wealth is under direct attack. Iran has targeted oil refineries and shipment centers across the Gulf. The Strait of Hormuz closure is simultaneously choking off their ability to get product to market, exposing how vulnerable the infrastructure of fossil fuel wealth can be.

All three countries have also committed to boosting renewable energy production. In Saudi Arabia, for example, the government aims for renewable energy sources to account for 50% of electricity generation by 2030, up from just 3% at the end of 2023.

Saudi Arabia’s biggest group of clean energy companies has pledged to spend $17 billion on solar and wind – across all their projects, spread out over several years.

But those efforts sit alongside vastly larger investments in fossil fuel production. In 2025 alone, the country’s nationally owned oil company, Saudi Aramco, spent $52.2 billion building new oil and gas infrastructure.

This is not a contradiction. It is a strategy built on the assumption that the world will keep buying fossil fuels for decades to come. The current crisis reinforces that assumption, but it also exposes its vulnerability: As war drives up oil prices, every oil-importing country is feeling the cost of continuing oil dependence. And every stranded export proves the energy transition can’t wait.

A large farm seen from the air, including a group of buildings with solar panels on their roofs.
Renewable energy helps drive this farm in Turkey.
Muhammed Enes Yildirim/Anadolu via Getty Images

Price shock and necessity

Energy-importing countries such as Jordan, Morocco and Turkey are investing in renewable energy for a different reason: Fossil fuel dependence is bankrupting them.

Turkey imports over 70% of its fossil fuels, including virtually all of its natural gas, 17% of which comes from Iran. Natural gas accounts for less than a fifth of electricity generation, but it is the backbone of the country’s heating and industrial sectors and a major concern if supply falters. Turkey’s energy import bill is climbing at a time when the economy is already under strain from rising borrowing costs and weakening currency value.

Jordan, which historically has imported over 90% of its energy, faces similar pressure.

But these countries would be in far worse positions had they not already been investing in alternatives.

More than half of Turkey’s installed electricity capacity now comes from renewable energy sources. Morocco built one of the world’s largest concentrated solar facilities, and renewable sources now supply 25% of the country’s electricity. Similarly, Jordan has gone from virtually no renewable electricity to renewable sources providing more than a quarter of its power in roughly a decade.

The current war has vindicated their investments in renewable energy – though the vindication has limits. The same crisis that proves the value of renewable energy investment also raises inflation, tightens credit and strains the very public finances these countries need to keep building.

Every kilowatt-hour generated by a Turkish wind turbine or a Moroccan solar panel is one that does not depend on a tanker passing through the Strait of Hormuz. But the financial pressure means building the next renewable generating project just got harder.

Crisis upon crisis

Then there are countries where this war lands on top of existing emergencies.

Iraq, the second-largest oil producer in the region and in the Organization of the Petroleum Exporting Countries, depends on Iranian gas imports to generate much of its electricity – a supply line now directly threatened by the war. Oil exports through the southern port of Basra, on the Persian Gulf, fund roughly 90% of Iraq’s government revenue. If those revenues are disrupted, the government may be unable to function. Iraq already suffers chronic electricity shortages and has virtually no renewable energy capacity to fall back on.

In Yemen, Libya and Syria, energy infrastructure has been damaged or destroyed by years of conflict. These countries import fuel at global prices to run generators and keep hospitals lit. Every dollar added to the price of oil makes that harder. For them, this war is not pointing out reasons to shift to renewable sources: It is threatening energy access itself.

A view down a dusty road, with wind turbines in the distance.
In war-torn Syria, renewable energy is a lifeline.
Ed Ram/Getty Images

An international challenge

In November 2026, the U.N.’s annual climate summit comes to the region at the center of this crisis, with Turkey as host.

The war in the Middle East has made a powerful case for the economic, political and humanitarian benefits of transitioning from fossil fuels to renewable energy sources. But it has also exposed something the global conversation consistently misses: Different countries are heading in different directions, based on their own circumstances, many of which predate this war.

Understanding those paths matters because it reveals what countries’ promises cannot: where the real barriers are, where the incentives already exist, and where support would make a difference – before the next disruption hits. In my view, this war has helped win the argument about whether to shift to renewable energy, but it has also highlighted a harder question: What does it actually take to build those sources, country by country?

The Conversation

Ezgi Canpolat received funding from The Salata Institute for Climate and Sustainability at Harvard University for the research referenced in this article. The findings, interpretations, and conclusions expressed herein are entirely those of the author and should not be attributed to any institution with which the author is or has been affiliated.

ref. War in the Middle East made the case for renewables – what’s happening in each country tells a harder story – https://theconversation.com/war-in-the-middle-east-made-the-case-for-renewables-whats-happening-in-each-country-tells-a-harder-story-278759

Why do some people treat the Magic Kingdom and Disney adults like cultural abominations?

Source: The Conversation – USA (2) – By Adam Kadlac, Teaching Professor of Philosophy, Wake Forest University

People railing against the phoniness of Disney World may be putting on a show of their own. Ian Langsdon/AFP via Getty Images

If you’ve ever expressed even a passing desire to visit Walt Disney World, you may have had friends who raised their eyebrows, groaned or even sneered.

The heart of their criticism isn’t just that they think Disney is for kids, or that it’s so expensive. It’s what I call the “authenticity objection” – the belief that there’s something fundamentally inferior about visits to theme parks like the Magic Kingdom because they occur in a wholly manufactured environment. The artificial mountains and rivers, the rides that provide nothing more than mindless distraction, the people dressed up as fictional characters …

It’s all so fake.

While people sometimes express this view in jest, others believe the fake environment borders on a cultural abomination. One online forum explicitly cites the manufactured nature of Disney World as a reason not to go, noting that the “smiling staff, the piped-in music, the perfect landscaping” can feel “creepy and overly controlled.”

Journalist EJ Dickson, herself a Disney fan, admits that visitors to Disney parks “willingly spend thousands of dollars on an authentic emotional experience that they know, at least on some level, isn’t really authentic at all.” And a representative Trip Advisor review dismisses Disney World as “a hot, commercialized, fake experience.”

If you’re anti-consumption and dislike warm weather, those criticisms of Disney World are fair enough: The weather in Florida is warm, and Disney is certainly trying to make money.

But as a philosopher who recently published a book, “The Magic Kingdom and the Meaning of Life,” I find criticisms of the parks as fake a bit more difficult to understand.

Disney isn’t shy about what it is

Marketing professors George Newman and Rosanna Smith note that philosophers have tended to think about authenticity through the lens of whether “entities are what they are purported to be.”

Apply that standard to Disney World: Does it represent itself as something other than a Disney-themed amusement park?

A group of men gathering around a model of a castle and chatting with one another.
Walt Disney, far left, discusses plans for Disneyland with a few of his company’s engineers – known as ‘imagineers.’
Earl Theisen/Getty Images

There are legitimate reasons to complain about the authenticity of some experiences. If you buy a ticket to a Van Gogh exhibition, you could rightfully complain if you discovered that only reproductions had been on display. The fact that you hadn’t been able to tell the difference while viewing the paintings wouldn’t matter – you hadn’t received the authentic experience of seeing Van Gogh’s original works.

By contrast, Disney attractions don’t pretend to be anything other than what they are.

When people at Disney’s Hollywood Studios ride Mickey and Minnie’s Runaway Railway, they know they are not actually on a runaway train being incompetently driven by a talking dog named Goofy. If Disney had marketed the attraction as something else – say, an Amtrak trip for kids – perhaps there would be grounds for complaining about its fakeness.

That clearly isn’t the expectation of anyone who waits in line for the experience. Riding the Runaway Railway might not be how you prefer to spend time, but there’s nothing fake about what it purports to be.

Who are you to judge?

If the initial form of the authenticity objection is relatively easy to handle, another concern lurks in the vicinity: the idea that Disney fans are somehow fake, due to their willingness to turn themselves over to the trappings of an artificial world.

The precise nature of this concern is a bit difficult to characterize. But it involves the belief that people who spend a lot of time in manufactured environments tend to delude themselves in ways that evade understanding and engaging with their true selves. Terms like “existential authenticity” or “self-authenticity” seem to capture what’s at stake.

Media scholar Idil Galip has pointed to the fact that the parks are highly “engineered and focus-grouped; there’s a whole lot of work that goes into selling this sort of experience.” This can, at a certain point, signal “a break from regular society or real life.”

This supposed connection between the fake world of Disney and the corruption of one’s authentic self is on full display in descriptions of so-called Disney Adults.

Dickson characterizes this view in her Rolling Stone article about Disney Adults: “Being a Disney fan in adulthood is to profess to being nothing less than an uncritical bubblehead ensconced in one’s own privilege, suspended in a state of permanent adolescence … refusing to acknowledge the grim reality that dreams really don’t come true.”

A large number of Disney cosplayers – dressed in outfits ranging from Buzz Lightyear to Captain Hook – pose for a group photo.
The internet loves to mock grown fans of Disney as unserious and inauthentic.
Daniel Knighton/FilmMagic via Getty Images

But I would strongly push back on the idea that a love of Disney World renders people fake or inauthentic in any meaningful way.

As journalist and blogger A.J. Wolfe argues in her 2025 book, “Disney Adults,” even the most passionate Disney devotees resist simple categorization. None of them, she explains, seem to be running from their true selves or even trying, in the slightest, to live in an imaginary world.

For example, Wolfe profiles Lady Chappelle, a British tattoo artist who relocated to San Diego, where she exclusively inks Disney-themed tattoos. Then there’s Brandon, a Hollywood drag queen who designed a Carousel of Progress-themed kitchen in honor of the attraction that now resides at Disney’s Magic Kingdom in Orlando, Florida.

These people are representative of pretty much all Disney Adults: They’re passionate about Disney, but they’re also passionate about tattooing and drag and myriad other pursuits.

For Disney Adults, Wolfe writes, an affection for Disney mostly adds “extra color and brightness – maybe definition, motivation, or inspiration if you’re lucky – to the complex and evolving masterpiece that is [their] life.”

And if that complexity applies to the most committed Disney fans, it’s that much harder to cast casual visitors in such a negative light.

The virtues of the Magic Kingdom

If theme parks aren’t your thing, that’s perfectly fine. You can have a wonderful life without setting foot in Epcot or the Animal Kingdom.

But as I point out in “The Magic Kingdom and the Meaning of Life,” Disney World has a number of virtues that its critics often miss.

I think it’s as good a place as any for people of all ages, backgrounds and abilities to come together and create valuable memories. When I ride Tiana’s Bayou Adventure with my wife and our intellectually disabled daughter, there is a little something for everyone: just enough thrill and storytelling for the adults, while not being overwhelming for my daughter. It’s a combination that can be difficult to find in many other places.

Moreover, because we are transported out of our daily routines, the parks can also present surprising opportunities for reflection. For example, I’ve thought a lot about cultural expectations around happiness while at Disney. Should I try to maximize my pleasure during this short trip? Or simply take each day as it comes? I’ve learned to embrace the latter.

I’ve also come to appreciate the value of anticipatory pleasure, which is the positive feeling you get from looking forward to something before it happens. This happened while reflecting on all the time people spend standing in line at theme parks.

Yes, there are many people who simply want to use the worlds of Disney – theme park, films or otherwise – to escape the grind of everyday life. But is seeking such an escape a greater threat to authenticity than checking out by playing video games, watching sports, reading smutty novels or using drugs and alcohol?

Is it possible for people to lose themselves in fantasy? Of course – just as it’s possible for anyone to lose themselves in their careers, relationships or hobbies. But in an age of curated social media accounts, influencer marketing and political doublespeak, the manufactured worlds of Disney might offer more authenticity than you would think.

The Conversation

Adam Kadlac 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 some people treat the Magic Kingdom and Disney adults like cultural abominations? – https://theconversation.com/why-do-some-people-treat-the-magic-kingdom-and-disney-adults-like-cultural-abominations-273191

Cameras have quietly appeared in thousands of US cities – now, their integration with AI is sounding alarms

Source: The Conversation – USA (2) – By Jess Reia, Assistant Professor of Data Science, University of Virginia

A small, black license plate recognition camera is mounted on a light pole in Boulder, Colo. Matthew Jonas/MediaNews Group/Boulder Daily Camera via Getty Images

For decades, cars dictated urban planning in the United States.

Few could have predicted that they would one day also double as nodes for surveillance.

In thousands of towns and cities across the U.S., automatic license plate readers have been installed at major intersections, bridges and highway off-ramps.

These camera-based systems capture the license plate data of passing vehicles, along with images of the vehicle and time stamps. More recently, these systems are using artificial intelligence to create a vast, searchable database that can be integrated with other law enforcement data repositories.

As a scholar of technology policy and data governance, I see the expansion of automatic license plate readers as a source of deep concern. It’s happening as government authorities are seeking ways to target immigrant and transgender communities, are already using AI to monitor protests, and are considering deploying AI systems for mass surveillance.

Eyes on the road

Using cameras to track license plates dates to the 1970s, when the U.K. was embroiled in a long-simmering conflict with the Irish Republican Army.

The Met, London’s police force, developed a system that used closed-circuit television cameras to monitor and record the license plates of vehicles entering and exiting major roads.

The system and its successors were seen as useful crime fighting tools. Over the next two decades, they expanded to other cities in the U.K. and around the world. In 1998, U.S. Customs and Border Protection implemented this technology. By the 21st century, it had started appearing in cities across the U.S.

There are different ways for a jurisdiction to implement these systems, but local governments usually sign contracts with private companies that provide the hardware and service.

These companies often entice authorities with free trials of surveillance equipment and promises of free access to their data in ways that bypass local oversight laws.

AI thrown into the mix

Recently, AI has been incorporated into these camera systems, significantly increasing their reach.

The vehicle information that’s captured is typically stored in the cloud, creating a massive web of data repositories. If a camera collects information from a suspect’s car or truck – say, one also listed in the National Crime Information Center – AI can flag it and send an instant alert to local law enforcement.

In fact, that’s a selling point of Flock Safety, one of the biggest providers of automatic license plate readers. The company uses infrared cameras to capture images of vehicles. AI then analyzes the data to identify subjects and quickly alert local authorities.

On the surface, automatic license plate readers seem like a logical way to fight crime. More information about the whereabouts of suspects can potentially help law enforcement. And why worry about cameras if you’re following the law?

But there are few peer-reviewed studies on their effectiveness. Those that exist find little evidence that they’ve led to reductions in violent crime rates, though they seem to be helpful in solving some crimes, like car thefts.

Furthermore, installation and maintenance are costly.

For example, Johnson City, Tennessee, signed a 10-year, US$8 million contract with Flock in 2025. Richmond, Virginia, paid over $1 million to the company between October 2024 and November 2025 and recently extended its contract, despite opposition from some residents.

The Conversation reached out to Flock for comment and did not hear back.

Young man wearing a polo shirt uses his smartphone to take a photograph of a camera affixed to a poll at dusk.
A Houston resident photographs a Flock license plate reader in his neighborhood in October 2025.
AP Photo/David Goldman

Erosion of civil liberties in plain sight

The technology seems to highlight the pitfalls of what scholars call “technosolutionism,” the belief that complex issues like crime, poverty and climate change can be solved by technology.

Even more disquieting, to me, is the fact that these camera systems have created a mass location tracking infrastructure knitted together by artificial intelligence.

The U.S. doesn’t have a federal law like the European Union’s General Data Protection Regulation that meaningfully limits the collection, retention, sale or sharing of location and mobility data.

As a result, data gathered through surveillance infrastructure in the U.S. can circulate with limited transparency or accountability.

License plate readers can easily be accessed or repurposed beyond their original goals of managing traffic, meting out fines or catching fugitives. All it takes is a shift in enforcement priorities – or a new definition of what counts as a crime – for the original purpose of these cameras to recede from view.

Civil liberties groups and digital rights organizations have been sounding the alarm about these cameras for over a decade.

In 2013, the American Civil Liberties Union published a report titled “You are Being Tracked: How License Plate Readers Are Being Used To Record Americans’ Movements.” And the Electronic Frontier Foundation has decried them as “street-level surveillance.”

A counter-camera movement emerges

The promise of these cameras was simple: more data, less crime.

But what followed has been murkier: more data, and a significant expansion of power over the public.

Without robust legal safeguards, this data can possibly be used to target political opposition, facilitate discriminatory policing or chill constitutionally protected activities.

This has already happened during the current administration’s aggressive deportation efforts. Automatic license plate reader databases were shared with federal immigration agencies to monitor immigrant communities. Recently, Customs and Border Protection was granted access to over 80,000 Flock cameras, which have also been used to surveil protests.

Then there’s reproductive health care. After the Supreme Court overturned Roe v. Wade in 2022, there were fears that people traveling across state lines to get an abortion could potentially be identified through automatic license plate reader databases. In Texas, authorities accessed Flock’s surveillance data as part of an abortion investigation in 2025.

Flock told NPR in February 2026 that cities control how this information is shared: “Each Flock customer has sole authority over if, when, and with whom information is shared.” The company noted that it has made efforts to “strengthen sharing controls, oversight and audit capabilities within the system.” But NPR also reported that many city officials around the U.S. didn’t realize how widely the data was being shared.

In response, some states have sought to regulate the technology.

Washington state lawmakers are deliberating the Driver Privacy Act. The legislation would prohibit agencies from using the surveillance technology for immigration investigations and enforcement, and from collecting data around certain health care facilities. Protests would also be shielded from surveillance.

Meanwhile, grassroots initiatives such as DeFlock have also emerged.

DeFlock’s online platform documents the spread of automatic license plate reader networks in order to help communities resist their deployment. The movement frames these systems not merely as traffic technologies, but also as linchpins of an expanding government data dragnet – one that demands stronger democratic oversight and community consent.

The Conversation

Jess Reia receives funding from the Carnegie Corporation of New York. They are affiliated with the UVA Digital Technology for Democracy Lab.

ref. Cameras have quietly appeared in thousands of US cities – now, their integration with AI is sounding alarms – https://theconversation.com/cameras-have-quietly-appeared-in-thousands-of-us-cities-now-their-integration-with-ai-is-sounding-alarms-276928

American politicians talk about persecuted Christians abroad – but here’s what happens when those Christians migrate to the US

Source: The Conversation – USA (3) – By Candace Lukasik, Assistant Professor of Religion, Mississippi State University

Coptic Easter liturgy, East Brunswick, N.J., April 2017. Candace Lukasik, CC BY-SA

Two months ago, Terez Metry arrived at a Department of Homeland Security office in Nashville with her husband, a U.S. citizen, expecting a routine step in beginning her green card application. The couple had prepared documents for a Form I-130 petition and anticipated an interview about their marriage.

But the appointment took a different turn. Instead of leaving together, immigration officers detained Metry and transferred her to an immigration detention facility in Alabama.

Metry’s family had fled Egypt during the Arab Spring – the 2011 wave of uprisings across the Middle East and North Africa – and came to the United States when she was a teenager. Their asylum claim was denied, and Metry was unaware that a removal order had been issued when she was 13. She is now 28.

Metry is a Coptic Christian. Copts belong to one of the oldest Christian communities in the world and make up about 10% of Egypt’s population.

A majority of Coptic Christians live in Egypt. They face discrimination and periodic violence; they are often described in political, religious, and advocacy discourse as a persecuted minority. This framing has generated concern among many American Christians and spurred political mobilization on their behalf.

Yet, as Metry’s case reveals, such concern does not translate into preferential treatment: When these Christians arrive in the U.S., they are subject to the same immigration system that detains and deports other migrants.

I am an anthropologist of religion who has spent more than a decade studying Coptic Orthodox Christian migration between Egypt and the U.S. Between 2016 and 2022, I conducted fieldwork and interviews with Coptic migrants for my book, “Martyrs and Migrants.” I spoke with diversity visa applicants in rural Upper Egypt, asylum-seekers in New York courtrooms, and working-class communities in Nashville, Tennessee.

Across these sites, my research shows how two realities – the narrative of Christian persecution abroad and the suspicion surrounding migrants in the U.S. – collide in the lives of Copts themselves.

The global politics of persecution

Over the past two decades, attacks on churches and episodes of sectarian violence in Egypt have drawn international attention. These concerns intensified after the Arab Spring uprisings and escalated with the rise of militant organizations such as the Islamic State group.

In 2015, Islamic State group militants executed 21 Christian migrant workers – 20 Egyptian Copts and one Ghanaian man – on a beach in Libya. Images of their deaths quickly became potent symbols of Christian suffering across global media and church networks.

While Coptic Christians have long faced discrimination and intermittent violence in Egypt, attacks during this period intensified in both scale and public visibility.

People standing in the pews of a large cathedral with several coffins laid out in the front.
A funeral service in Cairo, Egypt, on Dec. 12, 2016, for victims of a bombing.
AP Photo/Nariman El-Mofty

In 2017 alone, the Islamic State group claimed responsibility for two bombings of churches in Egypt on Palm Sunday as well as the mass shooting of pilgrims traveling to a monastery in southern Egypt. Accounts of the victims circulated widely online and received international news coverage.

In the U.S., evangelical leaders, advocacy organizations and some politicians often talk about the “persecuted church” – a framework that became especially influential in American religious freedom activism from the 1990s onward. Churches, nonprofits and policy advocates highlighted violence against Christians abroad through media campaigns, prayer initiatives and political lobbying, presenting it as a global crisis requiring American attention.

At a 2017 summit in Washington, D.C., for example, evangelical leader Franklin Graham described violence against Christians in the Middle East and Africa as a “Christian genocide,” urging believers to recognize the scale of the threat and respond collectively.

In my research attending international religious freedom conferences in Washington D.C., I found that stories like these helped many American Christians feel a strong sense of connection to Christians in the Middle East, whose suffering was often understood as part of a broader global struggle facing Christianity.

Yet this powerful narrative sits uneasily alongside how Middle Eastern Christians are treated in the U.S., where they may encounter not protection but the everyday suspicions faced by migrants from the region.

When Coptic Christian migrate

In Egypt, Copts live as a religious minority in a Muslim-majority society, where they have long faced restrictions on building and repairing churches – often requiring state permits that are difficult to obtain. Additionally, they are underrepresented in state institutions such as the military, judiciary and senior government positions; they also face periodic episodes of sectarian violence.

Moving to the U.S., a country where Christianity is the majority religion, might seem like a natural refuge.

But migration often reveals a different reality.

In 2019, for example, Romany Erian Melek Hetta, a Coptic Christian asylum-seeker, visited the Museum of the Bible in Washington, D.C. According to media reports, while waiting for a friend outside the museum, security officers questioned him about his identity and later reported him to the FBI as a possible security threat. This triggered a counterterrorism investigation.

Cases like this echo patterns I encountered in my ethnographic research among Coptic migrants in the New York–New Jersey area, who frequently described being perceived as suspicious or potentially threatening in everyday encounters. Some altered their dress, names or public presentation to avoid being mistaken for Muslim or Arab. As one priest in my fieldwork recalled of the period after 9/11, “We had the wrong complexion … You felt like you were a target and it wasn’t your fault.”

In everyday life in the U.S., Coptic migrants like Hetta are often seen simply as people from the Middle East. As scholars of post-9/11 racialization have shown, people taken to be Arab or Middle Eastern were widely cast as potential security threats, regardless of their religious identity.

For example, Magdy Beshara was the Coptic owner of the St. George’s Shell gas station in Bayville, New Jersey. Shortly after 9/11, the FBI came to the family’s home in the middle of the night, asking Beshara whether Marwan al-Shehhi, one of the 9/11 hijackers, had worked at the gas station.

For my book I interviewed Beshara’s stepson, who described the aftermath of the initial FBI raid: “People would drive by and say ‘We’re going to kill you terrorists’ and throw a big liquor bottle at me and my sister.”

Under the USA Patriot Act – a law passed after 9/11 that expanded the federal government’s surveillance and search powers – agents confiscated items from the family’s gas station and home. According to Beshara’s stepson, their mail was opened, their phones were tapped and they were followed to school by federal agents. The family also reported receiving death threats and said that when they asked local police to intervene, their requests were not acted upon.

Beshara’s stepson told me the experience forced him to draw a distinction. “It made me feel weird to say out loud, but I always thought to myself, ‘I’m not a Muslim, I’m a Christian.’ I felt like I was putting them down to say, ‘Hey, look, I’m the good guy.’ I felt like we had to do anything to defend ourselves.”

At school, he was bullied and physically assaulted on dozens of occasions. At one point in the months following the raid, an unknown assailant set the family’s house on fire while he and his little sister were sleeping. All of this took place even after the FBI notified Beshara that he was no longer a subject of investigation, since al-Shehhi, in fact, did not work at the gas station.

Even though Beshara was a Christian, that did not shield him from suspicion or discrimination. Government surveillance tied to counterterrorism and prejudice from neighbors continued to shape how he was seen.

A grey-haired man in a grey suit and red tie walks beside another in a priestly robe and long flowing beard, with an entourage behind them.
Former U.S. President Jimmy Carter with Pope Shenuda III, patriarch of the Coptic Orthodox Church, on March 21, 1987, in Cairo, Egypt.
AP Photo/Paola Crociani

Between persecution and suspicion

These dynamics become especially visible in moments of enforcement, where the gap between political rhetoric and immigration policy comes into sharp relief.

In 2017, federal immigration raids detained Iraqi nationals across the U.S., many of them Chaldean Christians – an Eastern Catholic community from Iraq with ancient roots in Mesopotamia.

These arrests prompted a class action lawsuit on behalf of those detained in the Detroit area, which was later expanded to include roughly 1,400 Iraqi nationals nationwide with final deportation orders.

Such cases unfold even as American Christians continue to say Middle Eastern Christians are uniquely deserving of protection – a disconnect between advocacy for “persecuted Christians” abroad and the realities of immigration enforcement at home.

In my own work as an expert witness for Coptic asylum-seekers, I have observed similar patterns across a detention system stretching from New Jersey to Louisiana. Some migrants are released while their cases proceed; others remain in prolonged legal limbo.

What I have found is that in practice, the line between “persecuted Christian” and “suspect migrant” is not just blurred – it is continually being redrawn by the state and reproduced in everyday encounters.

The Conversation

Candace Lukasik received funding from the Social Science Research Council, the American Academy of Religion, the Louisville Institute, and the Orthodox Christian Studies Center at Fordham University.

ref. American politicians talk about persecuted Christians abroad – but here’s what happens when those Christians migrate to the US – https://theconversation.com/american-politicians-talk-about-persecuted-christians-abroad-but-heres-what-happens-when-those-christians-migrate-to-the-us-276186

Quand le GPS devient une arme en mer : comment la guerre électronique menace les navires et leurs équipages

Source: The Conversation – France in French (2) – By Anna Raymaker, Ph.D. Candidate in Electrical and Computer Engineering, Georgia Institute of Technology

De plus en plus connectés, les navires sont également de plus en plus vulnérables aux cyberattaques.

Des navires qui semblent tourner en rond, dériver à l’intérieur des terres ou apparaître soudain à des centaines de kilomètres de leur route : ces anomalies sont devenues plus fréquentes dans les zones de conflit. Elles révèlent l’essor du spoofing GPS, une menace croissante pour les systèmes de navigation maritime et pour les équipages qui en dépendent.


La guerre en Iran fait la une de l’actualité, entre frappes aériennes et montée des tensions militaires. Mais au-delà des destructions immédiates, le conflit révèle aussi une menace plus discrète, et en rapide progression : la vulnérabilité des navires – et de leurs équipages – aux perturbations de leurs systèmes de navigation.

Le transport maritime moderne repose largement sur la navigation satellitaire GPS. Lorsque ces signaux sont brouillés ou manipulés, les navires peuvent soudain apparaître, pour leur propre équipage comme pour les autres bâtiments, à un endroit où ils ne sont pas. Dans certains cas, des bateaux ont été observés en train de « sauter » d’un point à l’autre sur les cartes, dériver à des kilomètres à l’intérieur des terres ou semblant tourner en rond selon des trajectoires impossibles. Dans les zones de guerre, ce risque est encore plus élevé : un navire peut alors être dévié de sa route et se retrouver, sans le savoir, en plein danger.

En tant que chercheur en cybersécurité spécialisé dans les infrastructures critiques et les systèmes maritimes, j’étudie la manière dont les menaces numériques affectent les navires et les personnes qui les exploitent.

Pour comprendre les risques liés aux perturbations du GPS, il faut d’abord comprendre comment fonctionne ce système. Le GPS détermine une position à partir de signaux envoyés par des satellites en orbite autour de la Terre. Un récepteur calcule sa localisation en mesurant le temps que ces signaux mettent à lui parvenir. Or, lorsqu’ils atteignent la surface de la Terre, ces signaux sont extrêmement faibles, ce qui les rend relativement faciles à brouiller ou à manipuler.

Brouillage et usurpation du GPS

Dans le cas du brouillage GPS (dit « jamming »), un attaquant neutralise les véritables signaux satellites en les noyant sous un bruit électromagnétique. Les récepteurs ne parviennent alors plus à les capter et les systèmes de navigation perdent leur position. Sur un téléphone, cela peut se traduire par une carte qui se fige ou par une localisation qui saute de manière erratique.

L’usurpation GPS (ou « spoofing ») est plus sophistiquée. Au lieu de bloquer les signaux, l’attaquant émet de faux signaux satellites imitant les vrais. Le récepteur les accepte et calcule alors une position erronée. C’est comme si vous rouliez vers le nord alors que votre GPS affirme soudain que vous partez vers le sud. Le récepteur ne dysfonctionne pas : il a simplement été trompé.

Des boucles visibles en mer Noire montrent des positions de navires falsifiées par spoofing GPS, enregistrées en janvier 2025. Les points rouges correspondent à de fausses positions GPS diffusées lors de ces attaques, faisant apparaître les navires comme se déplaçant en cercles parfaits sur les cartes de suivi, alors qu’ils se trouvaient en réalité à des centaines de kilomètres de là. Ces perturbations sont largement considérées comme liées aux interférences électroniques dans la région dans le contexte de la guerre en Ukraine. Image réalisée à partir de données de Spire Global.
Anna Raymaker

Pour les marins, le spoofing peut avoir de graves conséquences. En pleine mer, il existe peu de repères permettant de vérifier la position d’un navire lorsque le GPS se comporte de manière étrange. Près des côtes, on ne dispose plus de la moindre marge d’erreur : les profondeurs varient rapidement et les dangers sont nombreux, en particulier dans des passages étroits comme le détroit d’Ormuz, près de l’Iran, où des opérations de spoofing GPS sont signalés depuis le début de la guerre. Or les navires sont massifs et manœuvrent lentement : même de petites erreurs de navigation peuvent provoquer des échouements ou des collisions.

Un échouement en mer Rouge

Un exemple marquant s’est produit en mai 2025. Alors qu’il transitait par la mer Rouge, le porte-conteneurs MSC Antonia a commencé à afficher des positions très éloignées de sa localisation réelle. Pour les navigateurs à bord, le navire semblait avoir soudain « sauté » de plusieurs centaines de kilomètres vers le sud sur la carte et se mettre à suivre une nouvelle trajectoire. Désorienté, l’équipage a fini par perdre le contrôle de la situation, et le navire s’est échoué. L’incident a causé plusieurs millions de dollars de dégâts et nécessité une opération de renflouement qui a duré plus de cinq semaines.

Comparaison de la route du MSC Antonia montrant, à gauche, la trajectoire réelle du navire et son point d’échouement, et à droite la route falsifiée par spoofing. Les lignes rouges et noires à droite indiquent les positions GPS trompeuses où le navire semblait soudain apparaître. Ces trajectoires erronées ont semé la confusion parmi les navigateurs et ont conduit à l’échouement. Images réalisées à partir de données de VT Explorer.
Anna Raymaker

L’incident du MSC Antonia est loin d’être un cas isolé. Les données de suivi maritime ont mis en évidence des groupes de navires apparaissant soudain dans des positions impossibles, parfois loin à l’intérieur des terres ou décrivant des cercles parfaits sur les cartes. Des anomalies de plus en plus souvent attribuées à des opérations de spoofing GPS dans des zones de fortes tensions géopolitiques.

Mais les interférences GPS ne sont qu’une facette des menaces numériques qui pèsent désormais sur le transport maritime. Des rapports du secteur font état d’attaques par rançongiciel visant des compagnies maritimes, de compromissions de chaînes d’approvisionnement et d’inquiétudes croissantes autour de la sécurité des systèmes de contrôle embarqués, qu’il s’agisse des moteurs, de la propulsion ou des équipements de navigation. Plus les navires sont connectés – via l’internet satellitaire et des outils de surveillance à distance –, plus les points d’entrée potentiels pour les cyberattaques sont nombreux.

Les navires militaires tentent souvent de réduire ces risques en mettant en place une séparation plus stricte des réseaux informatiques et en organisant régulièrement des exercices d’entraînement, comme les simulations dites de « mission control », qui consistent à opérer malgré des systèmes de communication ou de navigation dégradés. Certains experts en cybersécurité estiment que des pratiques similaires pourraient renforcer la résilience du transport maritime commercial, même si la taille réduite des équipages et les ressources limitées rendent l’adoption de procédures inspirées du monde militaire plus difficile.

L’expérience des marins

Dans le débat public sur la cybersécurité maritime, l’attention se porte souvent sur les failles techniques des systèmes embarqués. Mais une autre dimension est tout aussi essentielle : les femmes et les hommes qui doivent interpréter ces technologies et réagir lorsque quelque chose tourne mal.

Dans une étude récente, mes collègues et moi avons interrogé des marins professionnels sur leur expérience des incidents cyber et sur leur capacité à y faire face. Les entretiens ont été menés avec des officiers de navigation, des ingénieurs et d’autres membres d’équipage responsables des systèmes du navire. Un constat s’en dégage clairement : les menaces numériques se multiplient en mer, mais les équipages sont mal préparés pour y répondre.

Beaucoup de marins nous ont expliqué que leur formation à la cybersécurité se concentrait presque exclusivement sur le phishing par e-mail et l’usage de clés USB. Une approche qui peut avoir du sens dans un environnement de bureau, mais qui prépare très peu aux incidents cyber à bord d’un navire, où les systèmes de navigation et de contrôle peuvent devenir les principales cibles. Résultat : de nombreux marins manquent de repères clairs pour comprendre comment une cyberattaque pourrait affecter les équipements dont ils dépendent au quotidien.

Le problème apparaît lorsque les systèmes du navire commencent à se comporter de manière anormale. Plusieurs marins ont ainsi raconté avoir vu le GPS afficher des positions erronées ou perdre momentanément le signal. Dans ces situations, il est souvent difficile de savoir s’il s’agit d’une simple panne technique ou du signe d’une interférence malveillante.

Et même lorsque l’équipage soupçonne un problème, de nombreux navires ne disposent pas de procédures claires pour faire face à un incident cyber. Les marins décrivent fréquemment des situations où ils devraient improviser si les systèmes de navigation ou d’autres outils numériques se comportaient de façon inattendue. Contrairement aux pannes matérielles, qui s’accompagnent généralement de listes de vérification et de protocoles bien établis, les incidents cyber se situent souvent dans une zone grise où les responsabilités et les réponses à apporter restent floues.

Un autre défi tient à la disparition progressive des pratiques traditionnelles de navigation. Pendant des siècles, les marins s’appuyaient sur les cartes papier et la navigation astronomique pour déterminer leur position. Aujourd’hui, la plupart des navires commerciaux dépendent presque entièrement de systèmes électroniques.

Plusieurs marins ont ainsi souligné que les cartes papier ne sont plus toujours disponibles à bord et que la navigation céleste est très rarement pratiquée. Si le GPS ou les systèmes de navigation électroniques cessent de fonctionner, les équipages disposent donc de peu de moyens pour vérifier indépendamment leur position. L’un des marins interrogés résume brutalement le risque : « Sans cartes, si vous êtes victime de spoofing, vous êtes un peu fichus. »

Une connectivité croissante, des risques accrus

Dans le même temps, les navires sont de plus en plus connectés. Les bâtiments modernes s’appuient désormais largement sur l’internet satellitaire – notamment des systèmes comme Starlink – ainsi que sur des outils de surveillance à distance pour gérer leurs opérations et communiquer avec la terre.

Si ces technologies améliorent l’efficacité, elles élargissent aussi les vulnérabilités des systèmes embarqués. La connectivité qui permet aux équipages d’envoyer des e-mails ou d’accéder à internet peut également ouvrir des voies d’accès aux cybermenaces vers les systèmes du navire.

À mesure que le spoofing GPS se multiplie dans les régions marquées par des tensions géopolitiques, les difficultés décrites par les marins dans notre étude deviennent de plus en plus difficiles à ignorer. Les océans peuvent sembler vastes et vides, mais les signaux numériques qui guident les navires modernes circulent dans un espace saturé et disputé.

Lorsque ces signaux sont manipulés, les conséquences ne se limitent pas aux systèmes militaires. Elles touchent aussi les navires commerciaux qui transportent l’essentiel des marchandises mondiales, ainsi que les équipages chargés de les conduire en toute sécurité.

The Conversation

Anna Raymaker a reçu des financements de la National Science Foundation et du Department of Energy pour ses travaux de recherche.

ref. Quand le GPS devient une arme en mer : comment la guerre électronique menace les navires et leurs équipages – https://theconversation.com/quand-le-gps-devient-une-arme-en-mer-comment-la-guerre-electronique-menace-les-navires-et-leurs-equipages-278459

No solo es dormir una hora menos: qué provoca el cambio horario en la atención, el humor y el bienestar psicológico

Source: The Conversation – (in Spanish) – By Oliver Serrano León, Director y profesor del Máster de Psicología General Sanitaria, Universidad Europea

Este domingo 29 de marzo vuelve una escena conocida: el calendario oficial publicado en el BOE marca el inicio del horario de verano en España. En términos prácticos, el reloj se adelanta una hora de manera simultánea en todo el territorio, aunque con distinta hora oficial en la península y en Canarias, tal como recoge el Real Decreto que regula el cambio horario. Sobre el papel parece un ajuste menor. Pero para el cerebro no siempre lo es.

No se trata solo de una mala noche

Desde la psicología, lo relevante no es tanto la hora “perdida” como el desajuste que se produce entre el tiempo social y el tiempo biológico. Nuestro organismo funciona con ritmos circadianos, es decir, oscilaciones internas que regulan el sueño, la activación, la temperatura corporal, el apetito y buena parte de la regulación emocional. Cuando el horario oficial se adelanta de golpe, el cuerpo no siempre acompasa ese cambio al mismo ritmo. Por eso, muchas personas experimentan durante unos días una sensación parecida a un pequeño jet lag social”: cuesta más dormirse, levantarse y rendir como si nada hubiera pasado.

Uno de los errores más frecuentes es pensar que el cambio se reduce a dormir una hora menos la madrugada del domingo. La evidencia apunta a algo más complejo. Una revisión reciente de 27 estudios concluye que la transición se asocia con efectos adversos sobre la duración y la calidad del sueño, además de más somnolencia diurna.

El impacto, además, parece ser más claro en las personas de cronotipo vespertino, es decir, aquellas que tienden a acostarse y activarse más tarde. No es solo una noche peor: en algunos casos hay varios días de adaptación incompleta.

Ese pequeño déficit de sueño tiene consecuencias psicológicas reconocibles. A menudo no aparece como un gran problema clínico, sino como una suma de “microdeterioros” cotidianos: más despistes, peor concentración, más lentitud mental, menor tolerancia a la frustración e irritabilidad.

La literatura científica sobre sueño, ritmos circadianos y salud mental muestra que las alteraciones del descanso y de la sincronía circadiana no solo afectan a cómo dormimos, sino también a la atención, la cognición y el estado de ánimo. En otras palabras: cuando el reloj biológico va desacompasado, también lo hacen parte de nuestros recursos psicológicos.

Atención, errores y fatiga: los efectos más inmediatos

El cambio de primavera también se ha relacionado con un aumento de la fatiga y con peor rendimiento en tareas que exigen vigilancia sostenida. No es casualidad que algunas investigaciones hayan observado efectos en contextos donde un pequeño descenso de alerta importa mucho.

Un estudio publicado en Current Biology encontró que el adelanto horario se asociaba con un incremento del 6 % en el riesgo de accidentes de tráfico mortales en Estados Unidos. El dato no significa que todas las personas vayan a conducir peor de forma llamativa, pero sí refuerza una idea básica: incluso una alteración aparentemente modesta del sueño puede tener efectos reales sobre la atención y el tiempo de reacción.

No afecta a todos por igual

Y como ocurre con casi todos los fenómenos psicológicos, no impacta del mismo modo en toda la población. Quienes suelen acostarse tarde, quienes ya arrastran deuda de sueño o quienes tienen horarios matutinos rígidos suelen notar más el desfase.

También los adolescentes constituyen un grupo especialmente sensible. Un estudio sobre sueño en esas edades tras el cambio de primavera observó que el ajuste puede dificultar el descanso y asociarse con un descenso del funcionamiento cognitivo. No resulta extraño: la adolescencia ya viene acompañada de una tendencia biológica a retrasar la hora de dormir, y el adelanto del reloj va justo en sentido contrario.

¿Puede afectar también al estado de ánimo?

Sí, pero aquí conviene ser prudentes. Sería exagerado afirmar que el adelanto de una hora “provoca” por sí solo trastornos psicológicos. La evidencia es más matizada. Por ejemplo, una conocida investigación realizada en Dinamarca encontró un aumento del 11 % en los episodios depresivos unipolares tras el cambio de otoño, no después del de primavera. Más recientemente, una investigación poblacional en Inglaterra encontró poca evidencia de un efecto agudo del cambio al horario de verano sobre los eventos de salud mental registrados en atención sanitaria.




Leer más:
Madrugar no le hará más rico y puede perjudicar su salud


La lectura razonable, por tanto, no es alarmista: para la mayoría de las personas el cambio de hora no generará un problema clínico, pero sí puede empeorar temporalmente el humor, la energía y la regulación emocional, sobre todo si ya existía vulnerabilidad previa.

Esta cautela encaja bien con lo que se sabe sobre la relación entre ritmos biológicos y salud mental. Estudios recientes indican que, en personas con trastornos del estado de ánimo, las alteraciones de la fase circadiana pueden preceder a los síntomas del estado de ánimo. Eso no implica que el adelanto horario sea una causa única, pero sí ayuda a entender por qué un reajuste aparentemente trivial puede notarse más en algunas personas que en otras.

Cómo amortiguar el impacto

La mejor forma de afrontar el cambio no es dramatizarlo, pero tampoco ignorarlo. La investigación sobre adaptación circadiana recuerda que la luz matutina es una de las señales más potentes para adelantar el reloj biológico y que la luz vespertina tiende a retrasarlo.

Por eso ayuda exponerse a la luz natural por la mañana, evitar una sobreestimulación lumínica intensa por la noche y proteger especialmente el descanso los días previos y posteriores. También puede ser útil adelantar progresivamente 15 o 20 minutos la hora de acostarse en las jornadas anteriores, en lugar de esperar a que el cuerpo resuelva solo el desfase de un día para otro.

En definitiva, el cambio de hora funciona como un recordatorio incómodo pero útil: la mente no opera al margen del sueño, de la luz ni de los ritmos biológicos. Una sola hora puede parecer poco, pero cuando esos 60 minutos se traducen en peor descanso, más fatiga, menos atención y más irritabilidad, deja de ser solo un ajuste del reloj y se convierte también en una cuestión de bienestar psicológico.

The Conversation

Oliver Serrano León no recibe salario, ni ejerce labores de consultoría, ni posee acciones, ni recibe financiación de ninguna compañía u organización que pueda obtener beneficio de este artículo, y ha declarado carecer de vínculos relevantes más allá del cargo académico citado.

ref. No solo es dormir una hora menos: qué provoca el cambio horario en la atención, el humor y el bienestar psicológico – https://theconversation.com/no-solo-es-dormir-una-hora-menos-que-provoca-el-cambio-horario-en-la-atencion-el-humor-y-el-bienestar-psicologico-279465

Brain drain in rural Wales isn’t inevitable ‑ we asked gen Z what would make them stay

Source: The Conversation – UK – By Sonya Hanna, Lecturer in Marketing, Bangor University

What we feel about our hometowns – the places we grew up, the people we know, the memories we made – shapes who we are.

For many young people in rural Wales, those ties run deep. The mountains, villages and slate landscapes are more than scenery. They are part of family stories and everyday life. But even though they care deeply about where they live, many feel they are being pushed to leave for education or work.

Our report focused on the slate landscape of north-west Wales, a Unesco world heritage site known for its historic mines and quarries. The area includes towns like Blaenau Ffestiniog, where the slate industry once shaped both the economy and the culture.

We found that generation Z – people now in their teens and twenties – often want to stay. But they feel overlooked in conversations about the future of their communities. They see the effects of what is often called “brain drain”, which is when younger people leave rural areas for cities because jobs, education and opportunities are limited.

Over time, this can hollow out local economies and communities. But many of the young people we spoke to believe things could be different.

A growing pressure to leave

Rural areas around the world face similar challenges. Tourism may bring visitors and income, but it can also drive up house prices and lead to second homes that stand empty for much of the year. Transport links can be poor, while secure, well-paid work can be scarce. And north Wales is no exception.

A 2025 report commissioned by a Welsh government organisation on migration and the low-carbon economy in the area found the regional workforce had shrunk by about 4,000 people between 2021 and 2022. Only 22% of survey respondents felt there were good employment opportunities locally. Just 26% believed public services in their area met their needs.

Among young people, the outlook can feel even more uncertain. One 2022 study found that 81% of young people in rural Wales believed they would have to move away within the next five years for education, training or work.

Governments are aware of the problem. Welsh government strategies emphasise the need for sustainable tourism and for young people to play a bigger role in shaping it.

International tourism guidelines also stress the importance of balancing economic development with environmental protection and cultural heritage. But in practice, young people often feel absent from the conversations among governments and the tourism industry.

Plans for the visitor economy in the county of Gwynedd and the wider Eryri National Park (sometimes known as Snowdonia) acknowledge the lack of career opportunities and the reliance on seasonal work. Yet young people themselves are rarely treated as a distinct group to consult directly. This is important because they are the generation that will decide whether these communities thrive or slowly empty.

An abandoned slate quarry.
The abandoned Cwmorthin Slate Quarry at Blaenau Ffestiniog.
Rob Thorley/Shutterstock

‘It’s the foundation of everything’

The young people we spoke with are deeply connected to the slate landscape. As one participant told us: “It’s like the foundation of everything that my life has been built on in a way, because my house is built on slate, it’s like on my roof… About four or five of us grew up together at the same age, and we would just spend hours on the slates drawing with chalk on the slates.”

These emotional ties matter. They help explain why many young people want to stay, even when opportunities elsewhere may look more attractive. But attachment alone is not enough. Young people want to shape the future.

One message came through repeatedly in our research: that young people want to be involved. They do not want their participation to be symbolic or tokenistic. They want a genuine role in shaping tourism, local development and the future of their communities.

Many had practical ideas. Some suggested developing guided heritage walks that combine history with outdoor activities such as climbing or trail running. Others proposed sensory walking routes with audio guides explaining the area’s culture and landscape. Several talked about using social media to promote the area and tell local stories in new ways.




Read more:
Wales plans a tourism tax from 2027 – what it means for visitors and communities


They also spoke about the slate caverns themselves, the vast underground spaces once used for mining. These could host festivals, cultural events or youth activities linked to the area’s Unesco status. Such ideas are not unrealistic. Adventure tourism companies already operate in parts of the slate landscape, using former quarry sites for activities such as zip lining. Young people want to help shape what comes next.

Addressing rural brain drain is not just about persuading young people to stay. It’s about creating communities in which they can imagine a future. In some places, this has been achieved by building cultural hubs that give young people access to training, creative opportunities and pathways into employment.

Without such efforts, rural areas can become increasingly polarised with large numbers of teenagers in school, followed by a population dominated by older, often retired residents. The result is a hollow middle generation.

But our research suggests another path is possible. Young people in north-west Wales care deeply about their home landscapes. They understand their cultural and environmental value. They have ideas about how tourism and heritage could evolve in sustainable ways. What they want most is simple. Not to leave but to be heard.

The Conversation

The authors do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

ref. Brain drain in rural Wales isn’t inevitable ‑ we asked gen Z what would make them stay – https://theconversation.com/brain-drain-in-rural-wales-isnt-inevitable-we-asked-gen-z-what-would-make-them-stay-268053

Is it safe to eat cold leftovers?

Source: The Conversation – UK – By Primrose Freestone, Senior Lecturer in Clinical Microbiology, University of Leicester

Cold pizza, a favourite for many, could be risky if it hasn’t been stored properly. Monkey Business Images/ Shutterstock

There are few things better than a cold slice of pizza for breakfast. But as delicious as scarfing down cold pizza is, there’s also a risk of food poisoning if you aren’t careful.

Food poisoning is caused by eating food that has become contaminated with pathogenic bacteria, fungi or viruses. Although most people know that food poisoning can be caused by poorly cooked foods or risky food preparation habits, improperly stored leftovers are also a key cause. It’s therefore extremely important you take care when storing leftovers to avoid harming your health.

Here’s my advice as a microbiologist for staying safe when eating your favourite cold leftovers.

Leftover pizza

You can get food poisoning from cooked pizza in a number of ways. Whether that’s because some of the ingredients are raw, undercooked or spoiled, or if the pizza has touched a surface with germs on it (including being handled by someone who hasn’t washed their hands).

Surprisingly, the dried herbs and spices that people often sprinkle on their pizzas (such as basil, pepper and oregano) can also be susceptible to microbial contamination. This contamination can occur during the harvesting and production phases, or due to improper storage by consumers. Some of the foodborne pathogens that can potentially survive on dried herbs include bacteria that can cause food poisoning, including Salmonella, Bacillus cereus and Clostridium perfringens.

Even if these dried herbs have been sterilised by the heat of a freshly baked pizza, if left at room temperature for too long after cooking these or any of the other pizza toppings, can provide the perfect snack for potentially harmful germs.

So if you’re a cold pizza lover, the best way to reduce your risk of food poisoning is to ensure any leftovers are refrigerated within two hours of being delivered or cooked. This should mean the pizza is safe to have cold for breakfast.

Once in the fridge, the leftover pizza needs to be stored covered (to avoid contamination from airborne germs) and eaten within two days. Note that putting leftover food in the fridge only slows bacterial growth, which is why leftovers should be eaten within two days maximum.

If the pizza is left at room temperature for more than a few hours, germs will grow quickly. This can make the pizza unsafe to eat the next day – no matter how tasty it might still look or smell.

Leftover chicken

Cooked chicken is highly perishable once cooled. Its high water and nutrient content and low acidity favours the growth of food poisoning bacteria, especially if it isn’t stored correctly after cooking.

It’s also important you only save chicken for leftovers if it has been cooked properly. If there’s any trace of blood in the cooked chicken’s juices, do not eat it – and certainly don’t save it for later.

This is because raw chicken may be contaminated with the food poisoning germs Campylobacter, Salmonella or Clostridium perfringens, so thoroughly cooking your chicken is essential.

If even a tiny amount of the chicken under-cooked, food poisoning germs still present within the tissues can start growing even when the meat is stored in the fridge. These germs may not be detectable by smell or sight.

A person places a plastic tupperware container full of leftovers in the fridge next to three other containers of leftovers.
Leftovers should be covered and placed in the fridge within a couple of hours of cooking.
TatianaKim/ Shutterstock

To stay safe, once you’ve removed your cooked chicken from the oven or rotisserie packaging, any that you aren’t planning to immediately eat should be covered and refrigerated as soon as possible after cooling. Ideally, it should spend no more than two hours at room temperature.

Cooked chicken can be stored for up to three days in the fridge. But again, if you notice blood in any part of the chicken, you absolutely should not eat it – whether cold or reheated – as this indicates it has been under-cooked and may be contaminated with germs.

Leftover rice dishes

Leftover rice dishes of any kind – whether that’s fried rice, burritos or risotto – have a major food poisoning risk. This is because uncooked rice can contain spores of Bacillus cereus, a common food poisoning bacteria that prefers starchy foods.

Although Bacillus cells are killed by the heat of cooking, their spores are heat resistant and can survive. If a cooked rice dish is then left at room temperature for more than two hours, the Bacillus spores have time to develop into bacteria and multiply. These spores are also able to release toxins into the cooked rice, which can potentially cause severe vomiting and diarrhoea lasting up to 24 hours.

If cooked rice needs to be saved, it should be covered once cooked, cooled quickly, then refrigerated for no more than 24 hours.

Cooked rice can be eaten cold, but only if has been cooled quickly after cooking and stored as quickly as possible in the fridge. It’s also best to consume cold cooked rice within 24 hours as B cereus spores can germinate during longer storage periods.

Left over canned foods

To safely store canned leftovers, it’s essential they’re covered and refrigerated to avoid contamination from airborne germs.

It’s considered safe to store the food in the original can as this has been sterilised in processing. But for flavour reasons, you might want to transfer it to a covered plastic or glass container.

Highly acidic foods, such as canned tomatoes, can be stored refrigerated for five to seven days. Low acidity canned foods, such as meat, fish, fruit, vegetables and pasta, can only be stored for up to three days. Acidic foods last longer because the acid inhibits the growth of food poisoning bacteria.

Leftovers can be safe to eat cold. Just make sure you refrigerate them as quickly as possible after cooking and consume within a day or two.

The Conversation

Primrose Freestone 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. Is it safe to eat cold leftovers? – https://theconversation.com/is-it-safe-to-eat-cold-leftovers-278012

UK government recommends maximum one hour of screen time for younger children: what the evidence says

Source: The Conversation – UK – By Olga Fotakopoulou, Associate Professor in Developmental Psychology, Birmingham City University

ADDICTIVE STOCK/Shutterstock

New UK government guidance recommends that screen time for children under two should be avoided, except for shared activities such as video calls. For children aged two to five, a maximum of an hour a day is suggested. The guidance also outlines that watching screens together is better than children viewing alone.

This echoes guidance from the World Health Organization recommending no screen time for infants under two, and no more than one hour per day for older children aged four and under.

The early years, especially from birth to age six, are a critical period for developing social and communication skills. This is when children are learning how to connect with others, communicate their needs and understand the signals people give them. Given the increasing presence of touchscreen technologies in young children’s environments, understanding how these tools influence early developmental trajectories is essential.

Touchscreen technology offers new opportunities for learning and play. But there are also questions about its impact on children’s social development, communication and school readiness. Researchers and health organisations have been working to consider how digital media interacts with children’s development and shapes their early experiences.

Excessive touchscreen use has been associated with delays in expressive language, reduced attention spans, and poorer interactions between parents and children.

Yet the picture is not one-sided. My research with colleagues highlights that early exposure to multi-modal technologies – tools that combine sound, images, touch and movement – can shape children’s social development in both positive and negative ways.

Language skills and collaboration

On the positive side, interactive and engaging uses of technology can foster language development. Studies show that digital platforms encouraging storytelling, role play and collaborative activities can enhance children’s competence in communication.

Touchscreens can also help children to work together on shared tasks. Multi-touch interfaces promote joint problem-solving, turn-taking and dialogue. This can strengthen cooperation and peer relationships.

In classrooms, tablets often become focal points for group activities. Children share knowledge, assist one another and collaborate on projects, which can enhance social interaction skills and confidence.

Touchscreens also create opportunities for social play and communication across distance. Video-communication apps such as Skype and FaceTime allow children to maintain relationships with family and friends, supporting emotional bonds and social connection.

Three children using a tablet together
Children can collaborate using screens.
Mkosi Omkhulu/Shutterstock

Creative expression is another area where digital tools can shine. Drawing, animation, and storytelling apps encourage children to share ideas and collaborate. This can promote cooperation and social bonding.

Passive use

However, these benefits coexist with significant challenges. Excessive screen time can reduce opportunities for face-to-face interaction, limiting children’s practice of conversational skills and emotional understanding. When children use screens passively or in isolation, they may become less engaged in socialising with others.

Parents’s use of screens is another concern. When parents are absorbed in their own devices, they talk less with their children. This reduces opportunities for educationally meaningful conversations.

Touchscreen use can also affect communication more directly. Studies show that electronic books may shift parents’ attention toward the device rather than the story, displacing meaningful conversation and reducing the quality of shared reading experiences. Some research suggests that heavy touchscreen use may make it harder for children to pick up social and emotional cues. This may affect their ability to decode social situations.

Importantly, the impact of touchscreen use is shaped by several mediating factors. Children learn more effectively when adults or their classmates model how to use touchscreen devices. As the government guidance states, it’s also better if adults watch screens together with their child, rather than their child watching alone.

Parents’ views and wider culture matter too. In research I carried out with colleagues, we found that cultural perceptions about what makes a good childhood shaped parents’ choices. In Portugal and Norway, strong cultural emphasis on outdoor play, social interaction, and connection with nature led parents to prioritise these activities over touchscreen use.

These cultural expectations influence how parents interpret and regulate young children’s digital practices, showing that attitudes toward technology are closely tied to wider national discourses about childhood. Educational settings further influence this. The way technology is integrated into classrooms can reinforce social behaviour.

These findings have important implications for school readiness. Social communication skills, such as turn-taking, listening, expressing ideas, and understanding others, are foundational for success in early education. Touchscreens can support these skills when used interactively and collaboratively. But when screen use replaces conversation, imaginative play or peer interaction, it may hinder the development of the very abilities children need for school and their social lives.

The evidence suggests that the question is not whether children should use touchscreens, but how. High-quality, interactive, and socially supported digital experiences can enrich development. Passive or excessive use can undermine it.

However, it’s vital to recognise that not all digital content is created equal. The quality and context of technology use can have a significant impact. As digital technologies continue to evolve, ensuring that young children’s screen experiences are balanced, meaningful, and socially engaging will be essential.

The Conversation

I have received funding from EU and Nuffield Foundation (but not for this project).

ref. UK government recommends maximum one hour of screen time for younger children: what the evidence says – https://theconversation.com/uk-government-recommends-maximum-one-hour-of-screen-time-for-younger-children-what-the-evidence-says-275752