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A Good Sea Level Rise Mapping Tool
(Be sure to check out the How to Talk to a Climate Sceptic guide)
Thanks to a commenter here, Sam on this thread, I had a look at another one of those google map-sea level rise tools. This one seems quite straightforward to use and can show you anything from 0 to 14 metres.
For the 35 SRES scenarios, we project a sea level rise of 0.09 to 0.88 m for 1990 to 2100, with a central value of 0.48 m.
There have been a number of recent findings about Greenland melt and Antarctic mass balance changes, so these figures may well be revised upwards.
It is very worth remembering that the year 2100 is not the end of time and ice sheets are one of the slower components of the climate system to respond to warming. We may be soon reaching a warming point that commits the world to many metres of rise. During the Eemian interglacial some 125K years ago, temperatures were 2 or 3 degrees higher and sea levels were 4 to 7 metres higher. There has been talk of irreversible desintegration beginning in the Greenland Icesheet and this mass alone represents 6 or 7 metres of sea level equivalent, but how long that will take is not clear (likely measured in centuries).
All that to say that 14m is not the map to generate if you are trying to guess beachfront property to leave your grandchildren, but it may be a plausible science fiction scenario for AD 2400+.