The fate of our planet’s coasts rests on Antarctic bedrock.

The uniquely vulnerable West Antarctic Ice Sheet holds enough water to raise global sea levels by 5 meters. But when that will happen — and how fast — is anything but settled.

Scientists are rethinking what we knew about a vanished ice sheet — and that could spell trouble for New York City.

Note: My web hosting service does not like the ridiculously long URL on this one. Here it is: https://www.livescience.com/planet-earth/climate-change/a-long-lost-antarctic-ice-sheet-could-predict-the-future-of-new-york-city-one-in-which-lower-manhattan-and-coney-island-are-perpetually-submerged