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.

We need to start serious measures to reduce greenhouse gases within the next decade. If we don't do something soon, we're committed to four to six meters (13 to 20 feet) of sea-level rise in the future.

The greenhouse effect I am knowing;
To protest right now I am going,
But oh my gee whiz,
I'm going that is,
If only it ever stops snowing.

This is a real eye-opener set of results. The warmth necessary to do this isn't all that great.

Recent warming coincides with rapid growth of human-made greenhouse gases. The observed rapid warming gives urgency to discussions about how to slow greenhouse gas emissions.

We now have the specter that new forests might increase greenhouse warming through methane emissions rather than decrease it by sequestering CO2. This paper will undoubtedly unleash controversy, not the least of which will be political.