How High's the Water, Mama?

Two international teams report today in the journal Science that Arctic summers by 2100 may be as warm or warmer than they were nearly 130,000 years ago, when sea levels eventually rose up to 20ft higher than today. Such a rise had been thought to be at least 1,000 years away.

- "Cities in danger as scientists predict rapid sea level rise" UK Telegraph

To see what a sea level rise of even three feet will mean for coastal areas, see this Google Maps "mash-up." The map is centered on the UK, but by using the navigation tools you can move around the globe, zoom in and out, and toggle through various scenarios, from a one- to 14-meter rise in sea level.