Scientists find new indicators of Alaska permafrost thawing

More areas of year-round unfrozen ground have begun dotting Interior and Northwest Alaska and will continue to increase in extent due to climate change, according to new research by University of Alaska Fairbanks Geophysical ...

Discovery uncovers need for ammonia emission regulations

A discovery by former Carnegie Mellon Ph.D. student, Mingyi Wang, leading a large collaborative team, sheds light on one way new particles are forming in the upper troposphere. The study, published in Nature, reveals an unexpected ...

Stalagmites reveal Australia's pre-colonial bushfire history

Like Plato's Cave, where fires reveal the portrait of an otherwise hidden reality, researchers have for the first time used a stalagmite's chemical signal to reveal the nature of Australia's historic wildfires, identifying ...

Dwindling water levels of Lake Powell seen from space

After decades of drought, water levels in Lake Powell, the second-largest human-made reservoir in the United States, have shrunk to its lowest level since it was created more than 50 years ago, threatening millions of people ...

What can we do about extreme weather?

Even without climate change, more people would be faced with the challenges of extreme weather events. That is because the human population continues to grow, our patterns of land use continue to change, and more and more ...

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