This has led some to the fearful conclusion that excess water is locked up in the ice sheets of Antarctica, and if the Earth and its oceans continue to warm, then sea levels could quickly stack up.
Researchers reached the conclusion by analysing ancient plants in the northern hemisphere – specifically the Arctic Circle.
The plant fossils were located on Baffin Island, in northeastern Canada, and scientists determined that the last time they grew was 115,000 years ago when the ice was also not covering them then.
However, the conundrum was that if temperatures are as warm now as they were 115,000 years ago, where is the ice which accounts for the excess 20 feet in sea levels?