Global Green is hosting its 3rd annual green blowout in San Francisco to support Global Green USA's efforts to rebuild New Orleans and advance eco-friendly and wallet-friendly housing development in San Francisco and Los Angeles, among other cities across the States. Big name celebs supporting the cause include Orlando Bloom, Kate Bosworth, Leonardo DiCaprio, Julie Delpy, Salma Hayek, and Edward Norton.

If you have some extra dough to donate to the cause, tickets for the event are going for upwards of $250 a pop. OR you could just do your part by bringing your own bag to the grocery store or investing in a travel mug for all that hot cocoa you'll be drinking this holiday season.

Eco-celebs that have attended the event before include Leo DiCaprio, Edward Norton, Orlando Bloom, and Kate Bosworth. source

Related Causes: Energy Conservation

Global Warming