The ocean's surface is not level, and sea levels change in response to changes in chemistry and temperature. Sophisticated satellite measurements are required for scientists to document current sea level rise.
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Check out this the Arctic and Earth SIGNs video to explore how climate models are used in climate change research.
In this activity, students use satellite images from the NASA Landsat team to quantify changes in glacier cover over time from 1986 to 2018.
Students explore positive feedback effects of changing albedo from melting Arctic sea ice.