Seas rise as planet warms, ice sheet melts

From the air, Greenland’s ice sheet, the second largest on Earth, appears to be perfectly still.
http://rss.cnn.com/~r/rss/cnn_tech/~3/174352628/index.html (http://rss.cnn.com/~r/rss/cnn_tech/~3/174352628/index.html).