PETA may have started the models getting-naked-for-a-cause trend, but now a new movement has got the genetically blessed stripping off their clothes.

The issue of climate change has inspired a video that shows models, including Crystal Renn (of Glamour nude photo shoot fame), Rianne Ten Haken and Nicole Trunfio stripping off their Phi, Erin Fetherston and Anna Sui duds (ostensibly because the earth is overheating) set to a rockin' tune by The Teenage Prayers.



Supermodels Strip to Fight Global Warming - Watch more Funny Videos

The video was conceived by model Cameron Russell for 350.org, an international campaign dedicated to solving the climate crises.

350 is the number of parts per million that scientists say is the safe upper limit for carbon dioxide in the environment. And in case you were wondering, we're already at 390 and counting.

Aside from being a sexy, fun-to-watch music video, the message is loud and clear -- we need to get the carbon level back down to 350 and the best way to do that is to talk to your local politicians (with your clothes on!).

And here's some other scantily clad eco-friendly fashion news.