The vast Greenland ice sheet is melting at some of its fastest rates in the past 12,000 years. And it could quadruple over the next 80 years if greenhouse gas emissions don’t decline dramatically in the coming decades.
Research published yesterday in the journal Nature warns that the ice sheet’s future losses depend heavily on how quickly humans cut carbon emissions today.
Led by Jason Briner of the University at Buffalo, State University of New York, the study is among the first to compare the possible future of the ice sheet with its ancient past.
“Now we’re really able to put into perspective just how anomalous our current change is and future changes might be,” said Josh Cuzzone, a co-author of the study and a scientist at the University of California, Irvine.
The researchers used models, informed by data from ancient ice samples drilled out from the ice sheet, to