1 00:00:01,040 --> 00:00:05,040 2 00:00:05,040 --> 00:00:09,040 2020 tied for the hottest year on record, matching 2016, NASA found. 3 00:00:09,040 --> 00:00:13,040 Earth’s average temperature has risen more than 2 degrees Fahrenheit since the 1880s. 4 00:00:13,040 --> 00:00:17,000 5 00:00:17,000 --> 00:00:21,040 This continues a long-term trend of warming caused by rising greenhouse gas levels from human activities like burning fossil fuels. 6 00:00:21,040 --> 00:00:25,040 7 00:00:25,040 --> 00:00:29,040 Modern global temperature records extend back 140 years. 8 00:00:29,040 --> 00:00:33,040 NASA and NOAA work together to monitor the global climate and how it’s changing. 9 00:00:33,040 --> 00:00:37,040 This year saw record fire and hurricane seasons and near-record low Arctic sea ice extent — all likely consequences of increasing global temperatures. 10 00:00:37,040 --> 00:00:41,040 11 00:00:41,040 --> 00:00:45,040 The last decade was the warmest decade on record. 12 00:00:45,040 --> 00:00:49,040 13 00:00:49,040 --> 00:00:57,707 NASA