OXFORD, England (Reuters) - A rise of at least two meters in the world's sea levels is now almost unstoppable, experts told a climate conference at Oxford University on Tuesday.

"The crux of the sea level issue is that it starts very slowly but once it gets going it is practically unstoppable," said Stefan Rahmstorf, a scientist at Germany's Potsdam Institute and a widely recognized sea level expert.

"There is no way I can see to stop this rise, even if we have gone to zero emissions."

Rahmstorf said the best outcome was that after temperatures stabilized, sea levels would only rise at a steady rate "for centuries to come," and not accelerate.

Reuters