Another celebrity has seen Al Gore's "An Inconvenient Truth" and found green religion.

Supermodel-turned-mommy Cindy Crawford, now a blogger for Vanity Fair's Web site, appeared on ABC's May 7 "Good Morning America" to tell viewers they can save the environment by buying a $20 water bottle.

"But my kids go to a school in Malibu and it's super-environmentally conscious," Crawford said. "We do beach clean ups, try to use less plastic as a school. And so, that kind of made me think what can I do? And, I teamed up with PUR, which is a water filtration company. They do the things you can attach to your faucets, as well as those pitchers and we came up with a reusable water bottle."