WEBVTT FILE 1 00:00:00.010 --> 00:00:04.190 NASA researchers are studying how Arctic vegetation responds to wildfires. 2 00:00:04.190 --> 00:00:08.520 3 00:00:08.520 --> 00:00:12.530 4 00:00:12.530 --> 00:00:16.540 Although fires occur naturally in the Arctic forest regions, the changing climate causes more lightning strikes, 5 00:00:16.540 --> 00:00:20.850 6 00:00:20.850 --> 00:00:28.328 Which can create more frequent wildfires and change the native vegetation.