WEBVTT FILE 1 00:00:00.010 --> 00:00:04.080 2017 was the second hottest year since 1880. when global measurements first became possible. 2 00:00:04.080 --> 00:00:08.090 3 00:00:08.090 --> 00:00:12.100 4 00:00:12.100 --> 00:00:16.100 This continues a decades-long trend of global warming. 5 00:00:16.100 --> 00:00:20.120 6 00:00:20.120 --> 00:00:24.140 As the global climate continues to warm, polar ice melts, 7 00:00:24.140 --> 00:00:28.160 sea levels rise, and fire seasons burn hotter and longer. 8 00:00:28.160 --> 00:00:32.210 9 00:00:32.210 --> 00:00:36.220 10 00:00:36.220 --> 00:00:40.220 NASA continues to monitor Earth's temperature and its effects on weather and climate, 11 00:00:40.220 --> 00:00:44.240 12 00:00:44.240 --> 00:00:48.240 to better understand our home planet as an interconnected system. 13 00:00:48.240 --> 00:00:52.440 14 00:00:52.440 --> 00:00:55.239