2018 Was the Fourth Warmest Year on Record

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2018 was the fourth hottest year on record. Earth has been warming up for decades. The last five years are the hottest five years on record and the last four were all more than 1 degree Celsius, warmer than the 19th Century average.

A warmer climate contributes to melting polar ice and mountain glaciers, rising sea levels, more severe droughts, longer fire seasons.

NASA and NOAA work together to study the temperature from weather stations, ships and buoys in the ocean, and Antarctic research stations.

Credits:
Kathryn Mersmann (USRA): Lead Producer
Ellen T. Gray (ADNET Systems Inc.): Lead Writer
Patrick Lynch (NASA/GSFC): Lead Public Affairs Officer
Gavin A. Schmidt (NASA/GSFC GISS): Lead Scientist

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