WEBVTT FILE 1 00:00:00.850 --> 00:00:03.590 This is the Cryosphere 2 00:00:03.590 --> 00:00:05.890 Cryo=Frozen 3 00:00:05.890 --> 00:00:06.400 4 00:00:06.400 --> 00:00:08.200 It has five parts 5 00:00:08.200 --> 00:00:09.010 Sea Ice 6 00:00:09.010 --> 00:00:09.770 Snow 7 00:00:09.770 --> 00:00:10.390 Permafrost 8 00:00:10.390 --> 00:00:11.070 Glaciers 9 00:00:11.070 --> 00:00:12.680 Ice Sheets 10 00:00:12.680 --> 00:00:14.990 That's a lot of ice 11 00:00:14.990 --> 00:00:16.520 12 00:00:16.520 --> 00:00:17.880 The Cryosphere is pretty important 13 00:00:17.880 --> 00:00:21.940 Basically, life on Earth needs it to survive 14 00:00:21.940 --> 00:00:24.690 But parts of it are melting quickly 15 00:00:24.690 --> 00:00:28.370 NASA is working on finding answers 16 00:00:28.370 --> 00:00:32.800 17 00:00:32.800 --> 00:00:35.970 Cryosphere 18 00:00:35.970 --> 00:00:37.680 19 00:00:37.680 --> 00:00:39.706 Part of the new NASA Explorers Digital Series