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National Oceanic and Atmospheric Administration

The heat is on

The heat is on

This past summer was the hottest in recorded history and possibly in thousands of years. But the sweltering streak really extends much longer, according to the National Oceanic and Atmospheric Administration, with record land and sea surface temperatures for 16 straight months, which represents the longest such trend in 137 years.

There's not much serious debate within the scientific community about why this is happening. The rapid expansion of human activities in the industrial age that have enhanced the "greenhouse effect" through which emissions trap heat within earth's...

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