Latest forecast for sea level increase is 20 feet

Yachting Monthly staff will be able to sail to work by the year 2100 as London will be underwater, according to computer models.

For the first time rising temperatures and climate change records have been fed into a computer which has coughed up a new 20 foot rise in 94 years as Greenland and Antarctica continue to thaw.

New York will face flooding, too, the research shows.