PARIS, FRANCE - NOVEMBER 30: Japanese Prime Minister Shinzo Abe (R) is greeted by French President Francois Hollande (L) as he arrives for the COP21, United Nations Conference on Climate Change, in Le Bourget, north of Paris, France, on November 30, 2015. (Photo by Mustafa Yalcin/Anadolu Agency/Getty Images)

PARIS, FRANCE - NOVEMBER 30: Japanese Prime Minister Shinzo Abe (R) is greeted by French President Francois Hollande (L) as he arrives for the COP21, United Nations Conference on Climate Change, in Le Bourget, north of Paris, France, on November 30, 2015. (Photo by Mustafa Yalcin/Anadolu Agency/Getty Images)