![Floods, droughts highlight water challenges](../../images/attachement/jpg/site1/20110130/0013729e48090eaf458907.jpg)
This file photo taken on March 28, 2010, shows people of Bala Yao ethnic township building a cistern in Tian'e county, South China's Guangxi Zhuang autonomous region. The area suffered a severe drought from August 2009 until April 2010. [Photo/Xinhua]
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