Global Green USA has released a new PSA to help drive awareness of their new “I AM” campaign – and it’s packed with plenty of famous faces that have supported the organization in the past.

Mark Ruffalo, Adrian Grenier, Orlando Bloom, Serena Williams, James Cameron, Billy Morrison, Mark McGrath, Kevin Bacon, and Kyra Sedgwick are just a few of the celebs that make appearances. The initiative is meant to keep climate change in the public dialog – in particular, the predicted devastating effects rising sea levels will have on people living near coastal areas.

Global Green’s I AM Campaign is tackling one of the most critical threats facing our cities and the people who live in them, said Mark Ruffalo. I AM empowers people to show why they care about their cities, and what they are doing to help fight global warming. If everyone can join together to help put a face to the American victims of these pending disasters, we can help show our leaders why they must act now.

GG is asking people to get involved via photo submissions to their website – with one lucky supporter winning a trip to walk the green carpet at the annual Pre-Oscar bash. Check out the PSA below – or to learn more, hit the official landing page here.

HIT FROM: ECORAZZI.COM