NASA Explorers: Permafrost
December 7, 2018
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6:05Now PlayingNASA Explorers: Permafrost
YouTube Description
as posted by the channelThis week, #NASAExplorers head back in time…by going underground. In the Arctic, a frozen layer of soil – permafrost – trapped dead plants and animals for thousands of years. As the climate warms, that soil is beginning to thaw, releasing carbon dioxide and methane.
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