The 13th Conference of the Parties to the Convention on Biological Diversity (COP13) is held in Cancun, Mexico, Dec. 5, 2016. (Xinhua/Mauricio Collado)
The 13th Conference of the Parties to the Convention on Biological Diversity (COP13) is held in Cancun, Mexico, Dec. 5, 2016. (Xinhua/Mauricio Collado)