NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
West Antarctic Ice Sheet melting. Image showing the flow speed of the ice sheet over West Antarctica - from a project aiming to determine the fate of the receding ice sheet. Three factors affect how quickly a glacier melts: the change in its flow speed, how much of it floats on seawater and the slope and depth (topography) of the terrain it is flowing over.
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