What states are warming the fastest?

cbsnews.com The Southwest warming, especially in the summer, seems to be driven by dryness, because when there is little water the air and ground warm up faster, said Katharine Hayhoe, a climate scientist at Texas Tech University.

WASHINGTON -- The United States is warming fastest at two of its corners, in the Northeast and the Southwest, an analysis of federal temperature records shows.

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The Southwest warming, especially in the summer, seems to be driven by dryness, because when there is little water the air and ground warm up faster, said Katharine Hayhoe, a climate scientist at Texas Tech University in Lubbock.

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