John Wahr
John Wahr
changes clearly global handle happening hard ice quite seeing until warming
It's a big place down there, and until now it has been very hard to get a handle on what's happening to the whole ice sheet. The changes we are seeing are quite clearly global warming at work.
assess determine entire fell gaining grace losing region strength whether
The strength of Grace is that we were able to assess the entire Antarctic region in one fell swoop to determine whether it was gaining or losing mass.
atmosphere both breaking due edges effects holds ice
Both of these effects are due to warming. Because the atmosphere is warmer, it holds more moisture, so you get more snow. But because it's warmer, the edges of the ice are breaking up.