According to LeDerpster, it will happen when Greenland moves south. You know these continents - they wander the face of the planet in random directions like a bunch of milling cows waiting to be milked.
Greenland is melting. It is not going to all melt quickly. It would take centuries or more for it all to melt. But it is melting and its meltwater is raising sea level. Given that the earth under almost the entire Greenland ice sheet is below sea level, it's ripe for the sort of unstable, unstoppable destruction that the West Antarctic Ice Sheet is currently undergoing. Both present the risk of catastrophic collapse and one going would very likely trip the other. Try to imagine the consequence of dumping enough ice into the oceans to raise sea level by, say, 3 meters, over a period of less than a year. You worry about your taxes going up - what's it going to cost to relocate half the fucking planet?
Greenland is melting. It is not going to all melt quickly. It would take centuries or more for it all to melt. But it is melting and its meltwater is raising sea level. Given that the earth under almost the entire Greenland ice sheet is below sea level, it's ripe for the sort of unstable, unstoppable destruction that the West Antarctic Ice Sheet is currently undergoing. Both present the risk of catastrophic collapse and one going would very likely trip the other. Try to imagine the consequence of dumping enough ice into the oceans to raise sea level by, say, 3 meters, over a period of less than a year. You worry about your taxes going up - what's it going to cost to relocate half the fucking planet?