Worldmapper.org warps world maps based on factors such as birth rates, GDP, and population. It amazes me how much more significant it feels to see a visual representation of something rather than to read facts and figures (which is why Al Gore climbing a ladder to show the rise of global warming in an Inconvenient Truth was an excellent touch).

Check out how fat India looks based on its population in 2050.

Kinda scary or exciting, depending on your feelings around volume and glasses of water (not to mention the presence of heavy metals in the water, the temperature of the water, the availability of that water, and perhaps the politics around access to that water - makes me want a coconut.)

Wanna see the US get fat? Check out their maps based on carbon emissions or GDP.