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The Discovery of Global Warming                            February 2016
Ice loss from Greenland as measured by the GRACE satellite instrument, which can detect the slight shift in gravity as mass declines. Greenland is gaining some ice inland, due to increased snowfall, but it is losing more ice through melting and glacier discharge around its periphery. Ice loss began around 2000; since then the rate of loss has doubled.

Greenland ice loss

Source: NOAA Arctic Report Card, see for updates.