PARIS, FRANCE - DECEMBER 12: Thousands of activists gather during a demonstration near the Arc de Triomphe at the Avenue de la Grande Armee boulevard on December 12, 2015 in Paris, France. The final draft of a 195-nation landmark agreement on climate has been submitted at the United Nations conference on climate change COP21, aimed at limiting greenhouse gas emissions and keeping planetary warming below 2.0 degrees Celsius. (Photo by Agung Parameswara/Getty Images)

PARIS, FRANCE - DECEMBER 12: Thousands of activists gather during a demonstration near the Arc de Triomphe at the Avenue de la Grande Armee boulevard on December 12, 2015 in Paris, France. The final draft of a 195-nation landmark agreement on climate has been submitted at the United Nations conference on climate change COP21, aimed at limiting greenhouse gas emissions and keeping planetary warming below 2.0 degrees Celsius.  (Photo by Agung Parameswara/Getty Images)