Most of the info appears to be available at the Wayback Machine:
http://replay.waybackmachine.org/20090217054716/http://maps.grida.no/go/graphic/fifty-million-climate-refugees-by-2010
Ping to my post above.
Here’s a link to an archive of the map image:
http://replay.waybackmachine.org/20090217054716/http://maps.grida.no/library/files/storage/11kap9climat.png
In general, archive.org / waybackmachine.org is quite useful for things like this.
