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The 15th United Nations Climate Change Conference (COP15) opens at Bella Center in Copenhagen, capital of Demark, Dec. 7, 2009. [Zhang Yuwei/Xinhua]
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The 15th United Nations Climate Change Conference (COP15) opens at Bella Center in Copenhagen, capital of Demark, Dec. 7, 2009. [Zhang Yuwei/Xinhua]
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