News tagged with global change

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Paleo study shows how elevation may affect evolution

About 34 million years ago, global temperatures took a dive, causing a sudden wave of extinctions among European mammals. In North America, however, life went on largely unscathed. A new study explains why: The rise of the ...

dateJun 03, 2015 in Evolution
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Greenhouse gas-caused warming felt in just months

The heat generated by burning a fossil fuel is surpassed within a few months by the warming caused by the release of its carbon dioxide into the atmosphere, according to new work from Carnegie's Xiaochun Zhang and Ken Caldeira ...

dateJun 02, 2015 in Environment
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Researchers clarify impact of permafrost thaw

As the Earth's climate continues to warm, researchers are working to understand how human-driven emissions of carbon dioxide will affect the release of naturally occurring greenhouse gases from arctic permafrost. As the perennially ...

dateMay 12, 2015 in Environment
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Thawing permafrost feeds climate change

Carbon, held in frozen permafrost soils for tens of thousands of years, is being released as Arctic regions of the Earth warm and is further fueling global climate change, according to a Florida State University researcher.

dateApr 23, 2015 in Earth Sciences
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