Hedge Fund manager, Philanthropist and Environmentalist Tom Steyer addresses a keynote presentation at at the COP 21 United Nations conference on climate change, on December 4, 2015 in Le Bourget. At the venue for the 195-nation talks in Le Bourget on the northern outskirts of Paris, negotiators were entrenched in familiar battle-lines over who should shoulder the cost for the effort to tame climate change. / AFP PHOTO / ERIC PIERMONT (Photo credit should read ERIC PIERMONT/AFP/Getty Images)
