This is the Earth after the sea level falls 3000 meters. Sort of the inverse of WATERWORLD. All the black specks in the middle of the oceans are new islands; the tops of formerly undersea mountains that are now exposed. The black bit over Tibet could be considered uninhabitable due to lack of oxygen. There's a massive landbridge across the northern hemisphere, Australia is now directly connected to Asia and there are hundreds of archipelagoes for your post apocalyptic miniature gaming enjoyment.
The map was generated at Cornell University/ INSTOC, Geoscience Information Project.