Ripples of Climate Change ; an Analysis of Studies Finds Solid Evidence That Warming has Disrupted U.S. Ecological Systems.

Summary

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Spring is arriving about two weeks earlier throughout the United States. Tree swallows are nesting nine days earlier than they did 40 years ago. Butterflies are disappearing on the West Coast, and tropical species are moving into Florida and the Gulf Coast.

Climate change is altering the American landscape in these and other ways, according to a new report released Tuesday by the Pew Center on Global Climate Change.

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Extract

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Ripples of Climate Change ; an Analysis of Studies Finds Solid Evidence That Warming has Disrupted U.S. Ecological Systems.

The report summarizes the findings of researchers who examined 40 scientific studies that showed links between a warming climate and ecological shifts in plants and animals in the United States. Their analysis found strong links in about half of...

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