The planet’s two largest ice sheets have been losing ice
faster during the past decade, causing widespread confusion and concern. A new
international study provides a firmer read on the state of continental ice
sheets and how much they are contributing to sea-level rise.
Dozens of climate scientists have reconciled their
measurements of ice sheet changes in Antarctica and Greenland during the past
two decades. The results, published Nov. 29 in the journal Science, roughly
halve the uncertainty and discard some conflicting observations.