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Sediment Cores From Antarctic Seabed Reveal Ancient Rain Forest
Drilling of the seabed off Antarctica has revealed that rainforest grew on the frozen continent 52 million years ago,...
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Century of Drought May Be Ahead
A drought that gripped western North America from 2000 to 2004 was the worst since the Middle Ages, but...
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Summer Storms to Create New Ozone Holes as Earth Warms?
Summer storms may create new holes in our protective ozone layer as Earth heats up—bringing increased solar ultraviolet radiation...
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Grand Canyon-Sized Rift Speeding Antarctic Ice Melt
A rift in the Antarctic rock as deep as the Grand Canyon is increasing ice melt from the continent,...
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Forest ‘Disruption’ Greater Threat Than Climate Change
Deforestation of protected areas and illegal hunting of endangered species that live there has a greater impact on biodiversity...
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Satellites See Unprecedented Greenland Ice Sheet Surface Melt
For several days in July, Greenland’s surface ice cover melted over a larger area than at any time in...
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Polar Bears, Brown Bears Interbreed to Cope With Climate Change
Polar and brown bears diverged between 4 million and 5 million years ago, but they continued to interbreed when...
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Rethinking Modern Human Origins
It’s assumed that modern humans, Homo sapiens, originated in Africa sometime between 200,000 and 100,000 years ago. But paleoanthropologist...
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Global Warming’s Terrifying New Math
Three simple numbers that add up to global catastrophe - and that make clear who the real enemy is
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Huge Iceberg Breaks Off From Glacier in Greenland
An iceberg twice the size of Manhattan tore off one of Greenland’s largest glaciers. For several years, scientists had...