Jonathan Overpeck Sheet Quotations

If we decide to keep on the track we're on now and just keep on warming, because of greenhouse gas pollution, then we could easily cook those ice sheets more rapidly.

Although we show that the models do an excellent job, our primary results are based on data. We know the ice sheets melted. We know how much warmth it took to melt them. And that is not a modeled finding.

This is a real eye-opener set of results. The last time the Arctic was significantly warmer than the present day, the Greenland Ice Sheet melted back the equivalent of two to three meters of sea level.

We're saying that this could come much faster. The ice sheets are more vulnerable to climate warming than we had thought. The only good news I see is that we know about it in advance and can do something about it if we want.