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This NASA animation shows the rapid decline in the Arctic's perennial sea ice from 1984-2016
This NASA animation shows the rapid decline in the Arctic's perennial sea ice from 1984-2016

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    Watch Arctic sea ice disappear

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Watch Arctic sea ice disappear

This NASA animation shows the rapid decline in the Arctic's perennial sea ice from 1984-2016.

Watch Arctic sea ice disappear

This NASA animation shows the rapid decline in the Arctic's perennial sea ice from 1984-2016.