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 | Students from Peking University posting for a photo on June 24th 2004, before a summer bike tour to promote the reservation of water resources. click to open  |  | Students from Peking University posting for a photo on June 24th 2004, before a summer bike tour to promote the reservation of water resources. click to open |  | A Chinese man walks past an advertisement about conservation of water on the streets of Beijing, China, Monday, April 5, 2004. China's vast northern region's dry climate coupled with a booming economy and huge population size means water resource conservation and management is becoming a critical issue. click to open |
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