8th Annual Clinton Global Citizen Awards, New York, America - 21 Sep 2014

Now, if you will excuse Leo, he has a private jet waiting for him.

Via Climate Depot:

Leonardo DiCaprio and his partner at Appian Way Productions, Jennifer Davisson, bought the movie rights for an eco-themed, post-apocalyptic young adult novel, The Sandcastle Empire.

The book, written by Kayla Olson, has not yet been published, but attracted DiCaprio because of its environmental themes, The Hollywoood Reporter said.

Set in 2049, the book chronicles Earth at a breaking point due to climate change, coastal flooding and overpopulation. As humanity struggles to survive, a radical faction known as the Wolfpack overthrows the government and takes control.