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2018 Was Earth's Fourth-Hottest Year on Record: NOAA and NASA Report

Wednesday February 6, 2019. 09:00 PM , from Slashdot
The string of hotter-than-average annual temperatures continued in 2018, as Earth experienced its fourth-hottest year on record, according to NASA and the National Oceanic and Atmospheric Administration [PDF]. From a report: Also in 2018, the United States suffered 14 weather and climate disasters with costs surpassing $1 billion during a warmer- and wetter-than-average year, NOAA reports. Global temperatures across land and sea were 1.42 degrees Fahrenheit above the 20th century average, making 2018 the fourth-warmest year since record-keeping began in 1880, NOAA said in a report Thursday. In a separate report, NASA's Goddard Institute for Space Studies said global temperatures were 1.5 degrees above the 1951 to 1980 mean, also the fourth highest going back to 1880.

The 2-degrees Fahrenheit increase in global temperatures since the late 19th century has been driven largely by growing carbon dioxide and other greenhouse gas emissions from human activity, said the institute's director, Gavin Schmidt. The conclusion reaffirms NASA's long-established finding that man-made emissions are driving climate change, which President Donald Trump and some senior administration officials frequently challenge. By both agencies' measures, Earth has now recorded its five hottest annual average temperatures in the past five years. '2018 is yet again an extremely warm year on top of a long-term global warming trend,' Schmidt said in a press release.

Read more of this story at Slashdot.
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