Environmentalists have warned for years of a looming water crisis in China. So just how far off is it now?
Recent water contamination disasters in Guangxi and Jiangsu and severe droughts in parts of Yunnan and Jiangxi that previously had abundant supplies of water have reignited fears that an acute crisis could blow up at any time.
A drought that has gripped the southwestern province of Yunnan for three years has seen 120 rivers dry up and affected more than six million people, with 2.4 million running out of drinking water.
While officials are more apt to blame Mother Nature for water shortages and rumour-mongers for panics sparked by pollution, as seen in Jiangsu and Guangxi, environmentalists point to a series of glaring human errors.
In Yunnan's case, huge amounts of waste, outdated irrigation technology, insufficient funding of agricultural facilities and the building of dozens of large dams on almost every major river have made the water shortage even worse.
Environmentalists say human factors, especially the central government's reluctance to lift the cloak of secrecy, can significantly increase the risk of a crisis, or exacerbate an environmental disaster caused by pollution.