UN-CLIMATE SUMMIT 2014(01 of21)
Open Image ModalLeonardo DiCaprio speaks at the opening of the United Nations Climate Summit 2014 September 23, 2014 at the United Nations in New York. AFP PHOTO/Don Emmert (Photo credit should read DON EMMERT/AFP/Getty Images) (credit:DON EMMERT via Getty Images)
UN-CLIMATE CHANGE SUMMIT-DICAPRIO(02 of21)
Open Image ModalLeonardo DiCaprio, actor and UN Messenger of Peace speaks during the opening session of the Climate Change Summit at the United Nations in New York September 23, 2014, in New York. The Summit precedes the 69th Session of the UN General Assembly which will convene Tuesday at the UN Headquarters in New York. AFP PHOTO / Timothy A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) (credit:TIMOTHY A. CLARY via Getty Images)
UN-CLIMATE SUMMIT 2014(03 of21)
Open Image ModalLeonardo DiCaprio speaks at the opening of the United Nations Climate Summit 2014 September 23, 2014 at the United Nations in New York. AFP PHOTO/Don Emmert (Photo credit should read DON EMMERT/AFP/Getty Images) (credit:DON EMMERT via Getty Images)
UN-CLIMATE SUMMIT 2014(04 of21)
Open Image ModalActor Leonardo DiCaprio speaks at the opening of the United Nations Climate Summit 2014 September 23, 2014 at the United Nations in New York. AFP PHOTO/Don Emmert (Photo credit should read DON EMMERT/AFP/Getty Images) (credit:DON EMMERT via Getty Images)
Celebrity Sightings In New York City - September 22, 2014(05 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 22: Leonardo DiCaprio is seen in Soho on September 22, 2014 in New York City. (Photo by Alo Ceballos/GC Images) (credit:Alo Ceballos via Getty Images)
Celebrity Sightings In New York City - September 22, 2014(06 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 22: Leonardo DiCaprio is seen in Soho on September 22, 2014 in New York City. (Photo by Alo Ceballos/GC Images) (credit:Alo Ceballos via Getty Images)
8th Annual Clinton Global Citizen Awards - Arrivals(07 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: President and CEO of World Wildlife Fund, Carter Roberts presents actor/activist Leonardo DiCaprio the Clinton Global Citizen Leadership in Philanthropy Award at the 8th Annual Clinton Global Citizen Awards at Sheraton Times Square on September 21, 2014 in New York City. (Photo by Jemal Countess/Getty Images) (credit:Jemal Countess via Getty Images)
8th Annual Clinton Global Citizen Awards And CGCA Blue Carpet(08 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Leonardo Dicaprio speaks at the 8th Annual Clinton Global Citizen Awards And CGCA Blue Carpet at Sheraton New York Times Square on September 21, 2014 in New York City. (Photo by Paul Zimmerman/WireImage) (credit:Paul Zimmerman via Getty Images)
8th Annual Clinton Global Citizen Awards - Inside(09 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Actor/activist Leonardo DiCaprio (R) accepts the Clinton Global Citizen Leadership in Philanthropy Award at the 8th Annual Clinton Global Citizen Awards at Sheraton Times Square on September 21, 2014 in New York City. (Photo by Jemal Countess/Getty Images) (credit:Jemal Countess via Getty Images)
8th Annual Clinton Global Citizen Awards - Inside(10 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Leonardo Dicaprio speaks at the 8th Annual Clinton Global Citizen Awards at Sheraton Times Square on September 21, 2014 in New York City. (Photo by Michael Loccisano/Getty Images) (credit:Michael Loccisano via Getty Images)
8th Annual Clinton Global Citizen Awards - Arrivals(11 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Leonardo Dicaprio attends the 8th Annual Clinton Global Citizen Awards at Sheraton Times Square on September 21, 2014 in New York City. (Photo by Michael Loccisano/Getty Images) (credit:Michael Loccisano via Getty Images)
Celebrities Attend The People's Climate March - New York, New York(12 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Leonardo DiCaprio attends The People\'s Climate March on September 21, 2014 in New York City. (Photo by Rob Kim/Getty Images) (credit:Rob Kim via Getty Images)
Celebrities Attend The People's Climate March - New York, New York(13 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Leonardo DiCaprio attends The People\'s Climate March on September 21, 2014 in New York City. (Photo by Rob Kim/Getty Images) (credit:Rob Kim via Getty Images)
Celebrities Attend The People's Climate March - New York, New York(14 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Leonardo DiCaprio attends The People\'s Climate March on September 21, 2014 in New York City. (Photo by Rob Kim/Getty Images) (credit:Rob Kim via Getty Images)
Celebrities Attend The People's Climate March - New York, New York(15 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Leonardo DiCaprio attends The People\'s Climate March on September 21, 2014 in New York City. (Photo by Rob Kim/Getty Images) (credit:Rob Kim via Getty Images)
US-CLIMATE-DEMO(16 of21)
Open Image ModalActor Leonardo DiCaprio walks down 6th Avenue during the People\'s Climate March on September 21, 2014, in New York. Activists mobilized in cities across the globe Sunday for marches against climate change, with one of the biggest planned for New York, where celebrities, political leaders and tens of thousands of people were expected. The march comes before the United Nations Secretary-General Ban Ki-moon convenes a climate change summit of 120 world leaders . AFP PHOTO/Timothy A. Clary (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) (credit:TIMOTHY A. CLARY via Getty Images)
People's Climate March(17 of21)
Open Image ModalNEW YORK, NY - SEPTEMBER 21: Actor Leonardo DiCaprio participates in the People\'s Climate March on September 21, 2014 in New York City. The march, which calls for drastic political and economic changes to slow global warming, has been organized by a coalition of unions, activists, politicians and scientists. (Photo by Andrew Burton/Getty Images) (credit:Andrew Burton via Getty Images)
US-CLIMATE-DEMO(18 of21)
Open Image ModalActor Leonardo DiCaprio (C) walks down 6th Avenue during the People\'s Climate March on September 21, 2014, in New York. Activists mobilized in cities across the globe Sunday for marches against climate change, with one of the biggest planned for New York, where celebrities, political leaders and tens of thousands of people were expected. The march comes before the United Nations Secretary-General Ban Ki-moon convenes a climate change summit of 120 world leaders . AFP PHOTO/Timothy A. Clary (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) (credit:TIMOTHY A. CLARY via Getty Images)
US-UNGA-DICAPRIO(19 of21)
Open Image ModalUS actor Leonardo DiCaprio poses during the designate ceremony as UN Messenger of Peace at the United Nations September 20, 2014 in New York . The 69th session of the UN General Assembly begins next week. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) (credit:TIMOTHY A. CLARY via Getty Images)
US-UNGA-DICAPRIO(20 of21)
Open Image ModalUnited Nations Secretary General Ban Ki-moon as he designates actor Leonardo DiCaprio as UN Messenger of Peace at the United Nations September 20, 2014 in New York . The 69th session of the UN General Assembly begins next week. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) (credit:TIMOTHY A. CLARY via Getty Images)
US-UNGA-DICAPRIO(21 of21)
Open Image ModalUnited Nations Secretary General Ban Ki-moon as he designates actor Leonardo DiCaprio as UN Messenger of Peace at the United Nations September 20, 2014 in New York . The 69th session of the UN General Assembly begins next week. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) (credit:TIMOTHY A. CLARY via Getty Images)