Rajendra Pachauri, then chair of the Intergovernmental Panel on Climate Change at the United Nations European headquarters, 2012.

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Rajendra Pachauri, then chair of the Intergovernmental Panel on Climate Change at the United Nations European headquarters, 2012.
Rajendra Pachauri, then chair of the Intergovernmental Panel on Climate Change at the United Nations European headquarters, 2012.
Credit: Denis Balibouse/Reuters