Water from the world’s shrinking glaciers was responsible for almost a third of the rise in sea levels between 2003 and 2009, new research showed Thursday.

A study published in the journal Science revealed that researchers had analyzed data gleaned from two NASA satellites as well as traditional ground measurements from glaciers around the world.

‘For the first time, we’ve been able to very precisely constrain how much these glaciers as a whole are contributing to sea rise,