Earth sets heat record for third-straight year

Earth sizzled to a third-straight record hot year in 2016, government scientists said Wednesday. They mostly blame man-made global warming with help from a natural El Nino, which has since disappeared.

Measuring global temperatures in slightly different ways, NASA and the National Oceanic and Atmospheric Administration announced that last year passed 2015 as the hottest year on record.

By SETH BORENSTEIN, AP Science Writer

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