Greenland’s massive ice stockpile is melting faster than previously thought, and it may be too late to do anything about it except “adapt,” scientists have warned in a new study. The rate of ice loss there is up to four times faster than it was in 2003 and is contributing to rising sea levels, according to the new data. The findings, published in the journal Proceedings of the National Academy of Sciences (PNAS), used NASA climate data and GPS stations to study Greenland’s ice sheets, the Guardian reports. Greenland lost 280 billion tons of ice annually from 2002-2016, raising global sea levels by 0.03 inches per year.