Dammed thirsty: the cross-border fight for water

With half the world experiencing water scarcity for at least part of the year, the huge dams being built by some countries to boost their power supplies while their neighbors go parched are a growing source of potential conflict.

India's glacier disaster highlights Himalayan dangers

Long before this month's deadly flash flood in a remote Indian Himalayan valley, Kundan Singh Rana knew that all the construction work in the fragile region would one day mean disaster.

Glass frogs reappear in Bolivia after 18 years

A rare species of frog native to the eastern slopes of the Bolivian Andes has been spotted in the South American country for the first time in 18 years, the investigation team that made the discovery told AFP.

In Vermont, a milestone in green-energy efforts

Vermont's largest city has a new success to add to its list of socially conscious achievements: 100 percent of its electricity comes from renewable sources.

Egypt says Ethiopia dam mustn't reduce Nile's flow

President Mohamed Morsi Monday warned that Egypt would not allow its share of the Nile to be diminished by "one drop" after Ethiopia began diverting the Blue Nile as part of a giant dam project.

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