PARIS, FRANCE - NOVEMBER 30: Christiana Figueres, the executive secretary of the UN Framework Convention on Climate Change, speaks during the opening session of the United Nations Climate Summit on November 30, 2015 in Paris, France. Political leaders from 147 countries will address the conference throughout Monday and the summit will see negotiators from 195 countries try to finalise a new climate treaty over the next two weeks.  (Photo by Carl Court/Getty Images)