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.
A new map displays the effect of a 10-foot sea-level rise on U.S. coastal areas. Spoiler alert: Miami and Boston do not look good.
If current trends in global warming continue unmitigated, some of the world's most well-known landmarks could be destroyed by rising global sea levels, says new research.
Jakobshavn Isbrae glacier broke its own speed record again, quadrupling its summer run to the sea between the 1990s and 2012.
The discovery of an aquifer the size of Ireland is likely to cause major changes in understanding Greenland's role in rising sea levels.
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