Antarctica Losing More than 24 cubic Miles of Ice Annually -- and the Pace is Accelerating

Antarctic Mass Variation Since 2002.  Source: NASA

In Is Antarctica Melting?, NASA reports that the mass of ice in Antarctica has been declining by around a hundred cubic kilometers (24 cubic miles) annually since 2002. Furthermore, the rate at which the continent is losing ice is accelerating.

"The important message is that it is not a linear trend. A linear trend means you have the same mass loss every year. The fact that it’s above linear, this is the important idea, that ice loss is increasing with time," says Isabella Velicogna of NASA's Jet Propulsion Laboratory and the University of California, Irvine, in the NASA article.  Furthermore, the article emphasizes that this conclusion is supported by multiple threads of evidence.  "It isn't just one type of measurement," says Velicogna. "It's a series of independent measurements that are giving the same results, which makes it more robust."

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