As reported by the Washington Post:
"Greenland's glaciers are melting into the sea twice as fast as
previously believed, the result of a warming trend that renders
obsolete predictions of how quickly Earth's oceans will rise over the
next century, scientists said yesterday.
The new data come from
satellite imagery and give fresh urgency to worries about the role of
human activity in global warming. The Greenland data are mirrored by
findings from Bolivia to the Himalayas, scientists said, noting that
rising sea levels threaten widespread flooding and severe storm damage
in low-lying areas worldwide."
You can read the full article at the post.