Scientists at the climate change summit in Copenhagen are claiming that earlier estimates of the rise in sea levels caused by global warming, are too conservative. They believe that sea levels could rise by a metre or more by 2100. The original projections apparently did not include the impact of polar ice melting or breaking off.
I presume they are talking about the effects of melting of the Greenland and Antarctic ice, as the sea ice in the Arctic is already floating, so presumably cannot have much of an impact on sea levels.
More from the BBC.
