WEBVTT FILE 1 00:00:00.010 --> 00:00:04.020 2 00:00:04.020 --> 00:00:08.140 As seas warm and ice melts, Earth's oceans have risen steadily. 3 00:00:08.140 --> 00:00:12.160 4 00:00:12.160 --> 00:00:16.320 Now scientists say sea level rise is accelerating, according to a new study based on NASA data. 5 00:00:16.320 --> 00:00:20.380 6 00:00:20.380 --> 00:00:24.390 In the past 25 years, sea level is not only rising, but the rate of that rise is getting faster. 7 00:00:24.390 --> 00:00:28.460 8 00:00:28.460 --> 00:00:32.990 Increased ice melting in Greenland and Antarctica is primarily responsible for the acceleration. 9 00:00:32.990 --> 00:00:37.340 10 00:00:37.340 --> 00:00:41.390 If this acceleration continues, global sea level could be 26 inches higher by 2100. 11 00:00:41.390 --> 00:00:45.430 12 00:00:45.430 --> 00:00:56.556 Understanding how fast sea level is increasing can help prepare for the effects in coastal areas around the world.