Big names stars and the Los Angeles Mayor Antonio Villaraigosa came out to celebrate the 40th Anniversary of Earth Day with James Cameron at JW Marriott in downtown Los Angeles. The event was sponsored by Bing and Global Home Tree Radio. Acclaimed Director James Cameron( Titanic, Avatar) is friends with Richard Greene the host of the event and appears on the radio show as often as he can. Cameron expressed Greene's idea, "Around some of the themes of Avatar, a radio program to raise awareness about environmental issues and how that impacts the economy." The show addresses what we can do about it and to empower people.