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France's President Francois Hollande, left, holds a box containing an international petition to support the climate talks as he poses with bishop of Salisbury Nicholas Holtam, from second left, Cameroon's Augustine Njamnshi of the Pan African Climate Justice Alliance, Bishop of Brazil Leonardo Steiner and a unidentified representative of a pilgrim group at the Elysee Palace in Paris, Thursday, Dec. 10, 2015. (AP/Michel Euler)

France's President Francois Hollande, bishop of Salisbury Nicholas Holtam, Cameroon's Augustine Njamnshi, Bishop of Brazil Leonardo Steiner and other. (AP/Michel Euler)