Last Monday, we hosted a Nasa conference on the state of the West Antarctic ice sheet, which, it could be said, provoked something of a reaction. "This Is What a Holy Shit Moment for Global Warming Looks Like," ran a headline in Mother Jones magazine. We announced that we had collected enough observations to conclude that the retreat of ice in the Amundsen sea sector of West Antarctica was unstopp
![Global warming: it's a point of no return in West Antarctica. What happens next? | Eric Rignot](https://cdn-ak-scissors.b.st-hatena.com/image/square/c6d49b9cb4abb52a6942b520e04a09cc1647969a/height=288;version=1;width=512/https%3A%2F%2Fi.guim.co.uk%2Fimg%2Fstatic%2Fsys-images%2FGuardian%2FPix%2Fpictures%2F2014%2F5%2F17%2F1400327958031%2FMulti-layered-lenticular--011.jpg%3Fwidth%3D1200%26height%3D630%26quality%3D85%26auto%3Dformat%26fit%3Dcrop%26overlay-align%3Dbottom%252Cleft%26overlay-width%3D100p%26overlay-base64%3DL2ltZy9zdGF0aWMvb3ZlcmxheXMvdG8tb3BpbmlvbnMtYWdlLTIwMTQucG5n%26enable%3Dupscale%26s%3D9a5d0779b74c6d2c59a6829b39de6341)