Collapse Of Antarctic Ice Sheet Would Likely Put Washington, D.C. Largely Underwater

[bananas]

31. Sorry, I meant the OP of the thread you linked to in post #16

In post #16, you linked to another thread: http://www.democraticunderground.com/11279821
and the OP of that thread says thousands of years:

http://www.victoria.ac.nz/home/about/newspubs/news/ViewNews.aspx?id=4919&newslabel=

Future generations could face sea levels 20 metres higher

Published 20 March 2012

<snip>

Professor Ken Miller, who led the study, says that sea-level rise would take time.

"You don’t need to sell your beach real estate yet, because melting of these large ice sheets will take from centuries to a few thousand years," he says.

"The current trajectory for the 21st century global rise of sea level is 2 to 3 feet (0.8 to 1 metre) due to warming of the oceans, partial melting of mountain glaciers, and partial melting of Greenland and Antarctica."

Still, says Professor Naish, the study calls into question the sensitivity of the earth’s large ice sheets to temperature change and shows that the natural state of the earth under carbon dioxide already attained in the atmosphere is one with sea levels around 20 metres above present.

"If the present levels of carbon dioxide in the atmosphere are not abated, and humans were to disappear from the planet and return in 2000 years, they would find a world where the oceans have risen 20 metres," says Professor Naish.