The rate of sea level rise over the past couple decades was underestimated until recently, with possible implications for future rise.
The globe's hottest year is confirmed by the Japanese Meteorological Agency.
It's not only glaciers that are sending water rushing into the sea; surface sea ice is contributing more and more meltwater.
A warming planet may lead to swifter ice loss on Greenland’s ice sheet, and faster sea level rise for the rest of the world than previously predicted, scientists said Monday.
The planet shattered several climate records in 2013, from greenhouse gases to roasting Arctic heat to extreme storms.
The Greenland ice sheet collapsed 400,000 years ago causing worldwide sea levels to rise between 13 and 20 feet.
The Antarctic ice sheet is losing 159 billion tons a year, twice as much as the last measurements recorded.
See New York, Boston, San Francisco and other U.S. cities depicted as they would appear after 12 feet of sea-level rise.
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