Reuters image captionReceding water levels have exposed bleached-white embankments of Lake Mead The largest reservoir in the US has dipped to its lowest ever level, officials say, as an extreme drought continues in the region. The surface elevation of Lake Mead along the Arizona-Nevada border fell to 1,071.56ft (326.6 metres) above sea level at 06:00 GMT Thursday. It has sunk about 140ft since 2000 – which is almost the height of New York City’s Statue of Liberty. The reservoir is a major water supply source for more than 20 million people. Among them are residents of such big cities as Los Angeles and Las Vegas. Then and now: A ‘megadrought’ in California “People are certainly concerned,” Patti Aaron, a spokeswoman for the US Bureau of Reclamation, told the Associated Press. “We’re expecting the reservoir to keep declining until November, then it should start to rebound,” she said. Lake Mead […]