Clearest indication yet that polar ice sheets are melting fast

The paper, published on 29 November in the journal Science, shows that melting Antarctic and Greenland ice sheets have added 11.1mm (0.43") to global sea levels since 1992.

"The rate of ice loss from Greenland has increased almost five-fold since the mid-1990s" said NASA's Erik Ivins, co-author on the study. "In contrast, while the regional changes in Antarctic ice over time are sometimes quite striking, the overall balance has remained fairly constant—at least within the certainty of the satellite measurements we have to hand."