The worst drought to hit central China in half a century has brought water levels in some of the country's biggest hydropower producing regions to critical levels and could exacerbate electricity shortages over the summer. The official Xinhua news agency said on Wednesday that the water level at the world's biggest hydropower plant at the Three Gorges Dam in Hubei province has fallen to 152.7 meters, well below the 156-m mark required to run its 26 turbines effectively. Read More