28/04/2014

Wetlands likely to blame for greenhouse gas increases

A surprising recent rise in atmospheric methane likely stems from wetland emissions, suggesting that much more of the potent greenhouse gas will be pumped into the atmosphere as northern wetlands continue to thaw and tropical ...

High voltage at the world's tallest dam

Siemens is bringing electricity to the surface from the world's deepest arch-dam turbines. The dam of the Jinping-1 Hydropower Station in China's Sichuan province is 305 meters tall; the turbines are located 230 meters deep. ...

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