China Daily: In Wang Lianying's backyard are four basins filled with water that she uses for laundry, one each for soaking, soaping, scrubbing and rinsing. "The water's good for four or five cycles, at least half a month," the 69-year-old housewife said. "Our ox has to drink the water we use for washing our feet. "But we won't even be able to afford to use any water this way if the rain doesn't come in the next few days," she said. For many villagers like Wang in Songming county, Yunnan province, conserving...