A "king tide" leaves parts of Sausalito, Calif., flooded in 2010. Disagreement over the impact of ice-sheet melting on sea-level rise has led the Intergovernmental Panel on Climate Change to omit their influence - and thus underestimate sea-level rise - in recent reports, a pattern the panel repeats with other key findings. Photo by Yanna B./flickr. Dec. 6, 2012

IPCC predictions: Then versus now

 

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