Major sea level rise likely as Antarctic ice melts

By the end of the century, he said, the sheet will probably have lost enough ice alone to raise sea levels globally by "tens of centimetres".

The remainder of the projected rise would come from melting of the Greenland cap, melting of mountain glaciers in the Himalayas and Andes, and the expansion of seawater as it warms.

A number of research teams have come up with similar projections.

But this is the first time that an international body such as SCAR has endorsed the likelihood that sea levels will rise enough to threaten some of the world's biggest cities by the end of the century.