Leonardo DiCaprio, ever-active environmentalist, has jumped on board a new television series called E-Topia after a pitch from Craig Piligian, a producer of CBS' Survivor, and Tom Mazza, a producer of NBC's Treasure Hunter. The reality series will follow one small town as it goes from suburban wasteland to a fruitful eco-friendly community. While many are inspired by Mazza and Piligian's decision to take something trashy and turn it into a positive force, experts have noted similarities between the town and the careers of the two reality TV producers.

On Saturday, Treepeople will host, "An Evening Under The Harvest Moon" in Los Angeles, a star-studded event to celebrate their 33 years of environmental activism. Among those attending the party will be Peter Horton, the creator of the hit show Grey's Anatomy, and Ted Danson. Although organizers have assured guests that they'll have the best possible time, any requests that Danson return to the role of bartender will most certainly go unanswered.

Matt Damon is set to narrate the new film Running the Sahara, a documentary about Africa's contaminated water crisis, and has lent a helping hand to the non-profit group H2O Africa, which focuses on sustainable clean water programs. While many say media-hyped visits to Africa from such celebrities as Madonna and Angelina Jolie have turned acts of charity into ego driven "who cares the most" contests, Damon fans quickly and adamantly point out that the Good Will Hunting star visited Africa before it was hot.

The Governator is out and about waiving his green flag yet again, this time joining New York City mayor Michael Bloomberg in creating a widespread bipartisan multi-region agreement to lower carbon emissions in areas on both coasts of the United States. Never has a single person's guilt over what's in his garage led to so much good for society as a whole.

On Thursday Laurie David, NRDC Trustee and wife to Curb Your Enthusiasm's Larry David, announced that her Virtual March to Stop Global Warming has amassed more than 500,000 marchers. In an email to members David gave a special shout-out to marchers Paul Frank, the celebrated fashion designer, and Jon Bon Jovi. This comes as no surprise to pop culture enthusiasts; Frank has made a career out of the depiction of non-extinct wacky animals, and Bon Jovi has feared uncontrollable heat waves since warning all of us in his 1990 hit power ballad Blaze of Glory.