NASA Data + Google Maps API = Climate Change Flood Map
flood.firetree.net
flood.firetree.net
http://blog.firetree.net/2006/05/18/more-about-flood-maps/
Climate change predictions on sea level rise:
http://en.wikipedia.org/wiki/Current_sea_level_rise
Snippet:
More recent research from 2008 observed rapid declines in ice-mass balance from both Greenland and Antarctica, and concluded that sea-level rise by 2100 is likely to be at least twice as large as that presented by IPCC AR4, with an upper limit of about two meters.
It is important to give accurate information on the impact of global warming as we already have a huge problem of the public misunderstanding the issue. Your map seems very well done but a default rise of 7 meters, while it shows off the technology, may just add to the confusion.
[1] http://www.climatechange2013.org/images/uploads/WGIAR5_WGI-1... (see 13-4 for summary).
[2] Atmospheric CO2 scenarios are now known as RCPs for Representative Concentration Pathways in the IPCC AR5 report.