2012 Was Hottest Year Ever in U.S.

http://www.nytimes.com/2013/01/09/science/earth/2012-was-hottest-year-ever-in-us.html

By JUSTIN GILLIS
Published: January 8, 2013

The numbers are in: 2012, the year of a surreal March heat wave, a severe drought in the corn belt and a massive storm that caused broad devastation in the mid-Atlantic states, turns out to have been the hottest year ever recorded in the contiguous United States.

Multimedia

Record-Setting Heat Across the U.S. in 2012

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How hot was it? The temperature differences between years are usually measured in fractions of a degree, but last year blew away the previous record, set in 1998, by a full degree Fahrenheit.

If that does not sound sufficiently impressive, consider that 34,008 new daily high records were set at weather stations across the country, compared with only 6,664 new record lows, according to a count maintained by the Weather Channel meteorologist Guy Walton, using federal temperature records.

That ratio, which was roughly in balance as recently as the 1970s, has been out of whack for decades as the country has warmed, but never by as much as it was last year.

“The heat was remarkable,” said Jake Crouch, a scientist with the National Climatic Data Center in Asheville, N.C., which released the official climate compilation on Tuesday. “It was prolonged. That we beat the record by one degree is quite a big deal.” ….(more).

Global Climate Change http://courses.dce.harvard.edu/~envre130
Environment Ethics http://courses.dce.harvard.edu/~envre120
Cyprus International Institute (CII) (Harvard School of Public Health) http://Cyprus-Institute.us

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