#extreme-environments

#extreme-environments

The study highlights how rapid Arctic warming increases the frequency of extreme weather events, particularly concurrent heatwaves across Europe and eastern Asia.

The UK Health Security Agency reported around 1,504 heat-associated deaths in England during summer 2025, roughly half the predicted 3,039, despite the season being the warmest on record.

During major floods, thousands of tiny fish convene at Luvilombo Falls in the upper Congo River Basin to undertake a peculiar vertical migration, described for the first time today in Scientific Reports.

As the rust expands, it weakens the rock and helps break it apart. It's a very red part of the country, it's got that rusty hue, so you get that color getting whipped up with the strong winds.

"So whenever people think about hot weather, they always talk about the temperature," he says. "There's two issues with that. First of all, most people don't realise that the temperature is measured in the shade. So if you're in direct solar radiation, the amount of heat stress you're exposed to is much greater as it will stress your body out a lot more."

Covering Climate Now was formed in 2019 in response to the climate silence that then prevailed in much of the press, especially in the United States. Over the years that followed, hundreds of newsrooms joined our effort, and press coverage of the story began to reflect the scale of the crisis. Newsrooms beefed up their climate reporting teams; they confronted misinformation that sought to play down the problem; they thought creatively about how to find the climate connection on every beat.

Because we're homeotherms, we assume all mammals work the way we do. But in recent years, as improvements in technology allowed researchers to more easily track small animals and their metabolisms in the wild, we're starting to find a lot more weirdness.

Travelling there was a childhood dream of mine. I saw it as a way to test myself against something so much bigger. I nearly applied for a role at the British Antarctic Survey (BAS) 30 years ago, but then my wife and I were expecting our first child. Instead, I've worked as a chef in Michelin-star restaurants in Paris and London, hotels in Kuala Lumpur and St Moritz, and even at a school in Oxfordshire.

To capture the biological impact of this extreme environment, I used a comprehensive suite of sensors and biomarker analyses. I wore a wireless electroencephalograph (EEG) system to monitor brain activity, sleep stages and neural signatures of stress and adaptation; the Oura Ring to continuously track sleep patterns, heart-rate variability and circadian-rhythm shifts; and the glucose monitor to follow metabolic responses in real time.

Climate breakdown is occurring more rapidly with the heating rate almost doubling, according to research that excludes the effect of natural factors behind the latest scorching temperatures. It found global heating accelerated from a steady rate of less than 0.2C per decade between 1970 and 2015 to about 0.35C per decade over the past 10 years.

I don't know who invented this crazy challenge, but the idea is to put someone in a carved-out ice bowl and see if they can get out. Check it out! The bowl is shaped like the inside of a sphere, so the higher up the sides you go, the steeper it gets. If you think an icy sidewalk is slippery, try going uphill on an icy sidewalk. What do you do when faced with a problem like this? You build a physics model, of course.

'They save up ice like a savings account and then spend it all very quickly like a Black Friday event.'

In the pristine High Arctic sits the Kitsissut island cluster, also known as the Carey Islands, nestled between northwest Greenland and northeast Canada. The surrounding seas are perilous, and traveling there is difficult even with modern boats. But new archaeological evidence suggests ancient humans managed to sail to the islands, too. Early settlers lived on the islands between 4,500 and 2,700 years ago.

Changes in the Antarctic do not stay in the Antarctic. Though Antarctica is far away, changes here will impact the rest of the world through changes in sea level, oceanic and atmospheric connections and circulation changes.

When the category-5 storm Hurricane Melissa struck Jamaica in October, its path crossed communities that had varying levels of preparedness. Many with maintained coastal protections, upgraded drainage and reliable early-warning systems had power and water restored in days. Others were immobilized for weeks.

Polar bears are the poster children of climate changeand for good reason. These giant bears hunt, mate and spend their days hanging out on Arctic sea ice, which is rapidly disappearing as the climate warms. But some polar bears, it seems, are far more resilient than we realized: new research suggests that in one region, the bears are adapting to the declining sea ice.

Sea levels are rising faster than at any point in human history, and for every foot that waters rise, 100 million people lose their homes. At current projections, that means about 300 million people will be forced to move in the decades to come, along with the social and political conflict as people migrate inland. Despite this looming crisis, the world still lacks specific, reliable forecasts

So, believe it or not, the cold air that we get down here actually tends to help the performance of the helicopter. DAN: The low pressure systems we have here, particularly in this, weather we've been having, tends to create the opposite effect by decreasing the pressure. Low pressure systems, thinner air. DAN: And that cooler air makes the pressure higher again.

Originally due to be published in the autumn, the review appears to have had some sections removed. An earlier version is reported to have included warnings about the risks of eco-terrorism and the growing likelihood of war between China, India and Pakistan due to competition over a shrinking water supply from the Himalayas.

Ice-sheet retreat lined up with low algae growth over the past ~500,000 years, implying less CO₂ uptake in parts of the Southern Ocean during warm periods. The study points to iceberg-delivered, iron-rich sediments from West Antarctica during warm intervals, not windblown dust. The iron-bearing minerals in these sediments were highly weathered and not readily bioavailable to marine algae. If WAIS keeps shrinking, similar sediment delivery could weaken Southern Ocean carbon uptake, creating feedback that could amplify climate change.