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MNN's 2009 photos of the year

By: Catie Leary on Dec. 31, 2009, 8:23 a.m.
Nuclear power in China

Photo: ZUMA Press

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Nuclear power in China

A man rides past a power plant on May 22 in Taiyuan in China's Shanxi province. In 2009, China became the world's greatest emitter of greenhouse gases.