Ibrahim Thiaw, deputy executive director of the United Nations Environment Programme (UNEP), addresses the 13th Conference of the Parties to the Convention on Biological Diversity (COP13) in Cancun, Mexico, Dec. 5, 2016. (Xinhua/Mauricio Collado)
13th Conference of Parties to Convention on Biological Diversity held in Mexico
Source: Xinhua
2016-12-07 17:03:37
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