World Population Reaches 7 Billion

On October 31st 2011, the world will reach a milestone in terms of human population. According to the UN Population Division, there will be seven billion people on Earth. Back in the 1930s the figure was just two billion. The population explosion since then has been like none seen before. Can we survive with so many people? We take a look at some of the issues.

Full post: World Population Reaches 7 Billion

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