Planet Earth: 8 billion humans and dwindling resources

Are eight billion humans too many for planet Earth? As we reach this milestone on November 15, most experts say the bigger problem is the overconsumption of resources by the wealthiest residents.

Medal model predicts Winter Olympics leaders

Sochi on the Black Sea coast in Russia will host the XXII Olympic Winter Games and XI Paralympic Winter Games in 2014 which country will win what number of medals is open to debate. A study published in the International ...

Bhutan banks on 'white gold' hydropower

Home to meditating monks and Himalayan nomads, the sleepy kingdom of Bhutan has set its sights on becoming an unlikely energy powerhouse thanks to its abundant winding rivers.

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