For the first time, global governments have agreed to widespread international trade bans and restrictions for sharks and rays being driven to extinction.

Last week, more than 70 shark and ray species, including oceanic whitetip sharks, whale sharks, and manta rays, received new safeguards under the Convention on International Trade in Endangered Species of Wild Fauna and Flora. The convention, known as CITES, is a United Nations treaty that requires countries to regulate or prohibit international trade in species whose survival is threatened.

Sharks and rays are closely related species that play similar roles as apex predators in the ocean, helping to maintain healthy marine ecosystems. They have been caught and traded for decades, contributing to a global market worth nearly $1 billion annually, according to Luke Warwick, director of shark and ray conservation at Wildlife Conservation Society (WCS), an international nonprofit dedicated to preserving animals and their habitats.

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Dr. Mehmet Oz, the administrator for the Centers for Medicare and Medicaid Services (CMS) and former daytime talk show star, has recently been emailing all federal workers in his agency weekly tips on “Crushing Cubicle Cravings” and how to avoid snacking in the office.

“We all love a fun cookie swap and potluck this time of year. With several teams across CMS hosting holiday gatherings this month, I am sharing some strategies to help you make healthier choices—while still indulging in festive treats,” Oz wrote in his latest missive, which appears as a recurring section in his weekly bulletin titled “From the Administrator’s Desk,” according to emails viewed by WIRED.

“Set your intentions,” writes Oz. “Decide in advance how many treats you’ll allow yourself to enjoy and try to stick to that number. You don’t have to try every cookie on the cookie table.”

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Despite claims of environmental leadership and promises to preserve the Amazon rainforest ahead of COP30, Brazil is stripping away protections for the region’s vital ecosystems faster than workers dismantled the tents that housed the recent global climate summit in Belém.

On Nov. 27, less than a week after COP30 ended, a powerful political bloc in Brazil’s National Congress, representing agribusiness, and development interests, weakened safeguards for the Amazon’s rivers, forests, and Indigenous communities.

The rollback centered on provisions in an environmental licensing bill passed by the government a few months before COP30. The law began to take shape well before, during the Jair Bolsonaro presidency from 2019 to 2023. It reflected the deregulatory agenda of the rural caucus, the Frente Parlamentar da Agropecuária, which wielded significant power during his term and remains influential today.

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Meta has agreed to make changes to its “pay or consent” business model in the EU, seeking to agree to a deal that avoids further regulatory fines at a time when the bloc’s digital rule book is drawing anger from US authorities.

On Tuesday, the European Commission announced that the social media giant had offered users an alternative choice of Facebook and Instagram services that would show them fewer personalized advertisements.

The offer follows an EU investigation into Meta’s policy of requiring users either to consent to data tracking or pay for an ad-free service. The Financial Times reported on optimism that an agreement could be reached between the parties in October.

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CHANCAY, Peru—The elevator doors leading to the fifth-floor control center open like stage curtains onto a theater-sized screen.

This “Operations Productivity Dashboard” instantaneously displays a battery of data: vehicle locations, shipping times, entry times, loading data, unloading data, efficiency statistics.

Most striking, though, are the bold lines arcing over the dashboard’s deep-blue Pacific—digital streaks illustrating the routes that lead thousands of miles across the ocean, from this unassuming city, to Asia’s biggest ports.

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As global warming accelerates, about 480 million people in North Africa and the Arabian Peninsula face intensifying and in some places unsurvivable heat, as well as drought, famine, and the risk of mass displacement, the World Meteorological Organization warned Thursday.

The 22 Arab region countries covered in the WMO’s new State of the Climate report produce about a quarter of the world’s oil, yet directly account for only 5 to 7 percent of global greenhouse gas emissions from their own territories. The climate paradox positions the region as both a linchpin of the global fossil-fuel economy and one of the most vulnerable geographic areas.

WMO Secretary-General Celeste Saulo said extreme heat is pushing communities in the region to their physical limits. Droughts show no sign of letting up in one of the world’s most water-stressed regions, but at the same time, parts of it have been devastated by record rains and flooding, she added.

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Just a tiny amount of fentanyl, the equivalent of a few grains of sand, is enough to stop a person’s breathing. The synthetic opioid is tasteless, odorless, and invisible when mixed with other substances, and drug users are often unaware of its presence.

It’s why biotech entrepreneur Collin Gage is aiming to protect people against the drug’s lethal effects. In 2023, he became the cofounder and CEO of ARMR Sciences to develop a vaccine against fentanyl. Now, the company is launching a trial to test its vaccine in people for the first time. The goal: prevent deaths from overdose.

“It became very apparent to me that as I assessed the treatment landscape, everything that exists is reactionary,” Gage says. “I thought, why are we not preventing this?”

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The US Department of Energy has approved an $8.6 million grant that will allow the nation’s first utility-led geothermal heating and cooling network to double in size.

Gas and electric utility Eversource Energy completed the first phase of its geothermal network in Framingham, Massachusetts, in 2024. Eversource is a co-recipient of the award along with the city of Framingham and HEET, a Boston-based nonprofit that focuses on geothermal energy and is the lead recipient of the funding.

Geothermal networks are widely considered among the most energy-efficient ways to heat and cool buildings. The federal money will allow Eversource to add approximately 140 new customers to the Framingham network and fund research to monitor the system’s performance.

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The Trump administration has renamed the National Renewable Energy Laboratory, now calling it the National Laboratory of the Rockies, marking an identity shift for the Colorado institution that has been a global leader in wind, solar and other renewable energy research.

“The new name reflects the Trump administration’s broader vision for the lab’s applied energy research, which historically emphasized alternative and renewable sources of generation, and honors the natural splendor of the lab’s surroundings in Golden, Colorado,” said Jud Virden, laboratory director, in a statement.

He did not specify what this “broader vision” would mean for the lab’s programs or its staff of about 4,000.

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In early 2025, Sian traveled deep into the mountains of Shan State, on Myanmar’s eastern border with China, in search of work. He had heard from a friend that Chinese companies were recruiting at new rare-earth mining sites in territory administered by the United Wa State Army, Myanmar’s most powerful ethnic armed group, and that workers could earn upwards of $1,400 a month.

It was an opportunity too good to pass up in a country where the formal economy has collapsed since the 2021 military coup, and nearly half of the population lives on less than $2 a day. So Sian set off by car for the town of Mong Pawk, then rode a motorbike for hours through the thick forest.

Hired for daily wages of approximately $21, he now digs boreholes and installs pipes. It is the first step in a process called in situ leaching, which involves injecting acidic solutions into mountainsides, then collecting the drained solution in plastic-lined pools where solids, like dysprosium and terbium, two of the world’s most sought-after heavy rare-earth metals, settle out. The resulting sediment sludge is then transported to furnaces and burned, producing dry rare earth oxides.

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Around the world, some 40 million people are living with HIV. And though progress in treatment means the infection isn’t the death sentence it once was, researchers have never been able to bring about a cure. Instead, HIV-positive people must take a cocktail of antiretroviral drugs for the rest of their lives.

But in 2025, researchers reported a breakthrough that suggests that a “functional” cure for HIV—a way to keep HIV under control long-term without constant treatment—may indeed be possible. In two independent trials using infusions of engineered antibodies, some participants remained healthy without taking antiretrovirals, long after the interventions ended.

In one of the trials—the FRESH trial, led by virologist Thumbi Ndung’u of the University of KwaZulu-Natal and the Africa Health Research Institute in South Africa—four of 20 participants maintained undetectable levels of HIV for a median of 1.5 years without taking antiretrovirals. In the other, the RIO trial set in the United Kingdom and Denmark and led by Sarah Fidler, a clinical doctor and HIV research expert at Imperial College London, six of 34 HIV-positive participants have maintained viral control for at least two years.

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When the US Fish and Wildlife Service reintroduced 14 gray wolves to Yellowstone National Park in 1995, the animals were, in some ways, stepping into a new world.

After humans hunted wolves to near-extinction across the Western US in the early 20th century, the carnivore’s absence likely altered ecosystems and food webs across the Rocky Mountains. Once wolves were reintroduced to the landscape, scientists hoped to learn if, and how quickly, these changes could be reversed.

Despite studies claiming to show early evidence of a tantalizing relationship between wolves and regenerating riparian ecosystems since the canines returned to Yellowstone, scientists are still debating how large carnivores impact vegetation and other animals, according to a new paper published this month.

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Crypto-hoarding companies are ditching their holdings in a bid to prop up their sinking share prices, as the craze for “digital asset treasury” businesses unravels in the face of a $1 trillion cryptocurrency rout.

Shares in Michael Saylor-led Strategy, the world’s biggest corporate bitcoin holder, have tumbled 50 percent over the past three months, dragging down scores of copycat companies.

About $77 billion has been wiped from the stock market value of these companies, which raise debt and equity to fund purchases of crypto, since their peak of $176 billion in July, according to industry data publication The Block.

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Like many mushroom harvesters, I got interested in foraging for fungi during the COVID-19 pandemic.

I had been preparing for a summer of field work studying foraged desert plants in a remote part of Australia when the pandemic hit, and my travel plans were abruptly frozen. It was March, right before morel mushrooms emerge in central Pennsylvania.

I wasn’t doing a lot other than going on long hikes and taking classes remotely at Penn State for my doctoral degree in ecology and anthropology. One of the classes was an agroforestry class with Eric Burkhart. We studied how agriculture and forests benefit people and the environment.

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The UK government will promise to buy emerging chip technology from British companies in a 100 million pound ($130 million) bid to boost growth by supporting the artificial intelligence sector.

Liz Kendall, the science secretary, said the government would offer guaranteed payments to British startups producing AI hardware that can help sectors such as life sciences and financial services.

Under a “first customer” promise modeled on the way the government bought COVID vaccines, Kendall’s department will commit in advance to buying AI inference chips that meet set performance standards.

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Hacker conferences—like all conventions—are notorious for giving attendees a parting gift of mystery illness. To combat “con crud,” New Zealand’s premier hacker conference, Kawaiicon, quietly launched a real-time, room-by-room carbon dioxide monitoring system for attendees.

To get the system up and running, event organizers installed DIY CO₂ monitors throughout the Michael Fowler Centre venue before conference doors opened on November 6. Attendees were able to check a public online dashboard for clean air readings for session rooms, kids’ areas, the front desk, and more, all before even showing up. “It’s ALMOST like we are all nerds in a risk-based industry,” the organizers wrote on the convention’s website.

“What they did is fantastic,” Jeff Moss, founder of the Defcon and Black Hat security conferences, told WIRED. “CO₂ is being used as an approximation for so many things, but there are no easy, inexpensive network monitoring solutions available. Kawaiicon building something to do this is the true spirit of hacking.”

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In letters sent to Apple, Google, and Microsoft this week, Pornhub’s parent company urged the tech giants to support device-based age verification in their app stores and across their operating systems, WIRED has learned.

“Based on our real-world experience with existing age assurance laws, we strongly support the initiative to protect minors online,” reads the letter sent by Anthony Penhale, chief legal officer for Aylo, which owns Pornhub, Brazzers, Redtube, and YouPorn. “However, we have found site-based age assurance approaches to be fundamentally flawed and counterproductive.”

The letter adds that site-based age verification methods have “failed to achieve their primary objective: protecting minors from accessing age-inappropriate material online.” Aylo says device-based authentication is a better solution for this issue because once a viewer’s age is determined via phone or tablet, their age signal can be shared over its application programming interface (API) with adult sites.

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In 2010, the Deepwater Horizon oil rig exploded in the Gulf of Mexico, causing one of the largest marine oil spills ever. In the aftermath of the disaster, whale scientist Iain Kerr traveled to the area to study how the spill had affected sperm whales, aiming specialized darts at the animals to collect pencil eraser-sized tissue samples.

It wasn’t going well. Each time his boat approached a whale surfacing for air, the animal vanished beneath the waves before he could reach it. “I felt like I was playing Whac-A-Mole,” he says.

As darkness fell, a whale dove in front of Kerr and covered him in whale snot. That unpleasant experience gave Kerr, who works at the conservation group Ocean Alliance, an idea: What if he could collect that same snot by somehow flying over the whale? Researchers can glean much information from whale snot, including the animal’s DNA sequence, its sex, whether it is pregnant, and the makeup of its microbiome.

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