Jeremy Bruno is a tech writer who blogs about ecology, evolution, conservation and culture at The Voltage Gate. Visit the 
Here are two neat sites I've been meaning to link for a while. One is called The Miniature Earth, a flash vid of statistics revealing the cultural composition of humans if the world's population was proportionally reduced to 100 people. For example, of the 100, 61 would be Asian, 13 African, 12 European, 8 North American, 5 South American/Caribbean and 1 from Oceania.
The other site, BreathingEarth, projects how much CO2 is being released as we speak, country by country, factoring birth rates and death rates into the model. The census data seems to be a bit dated, but it is an interesting diversion.
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