The main motivation: pollution in lakes and reservoirs, according to a 2008 report from the Woodrow Wilson Center in Washington, D. C.

美国华盛顿伍德罗·威尔逊中心（Woodrow Wilson Center） 2008年发布的一份报告显示，这样做的主要推动力是中国湖泊和水库的污染。

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Wilson has said he'd like his next project to be a rock 'n' roll album.

CNN: By Denise Quan,