Read on to find out what these gorgeous gals and more told us about their eco-ways of living...
"I've been recycling," the Client List star recently told us. "And I've been trying to buy the cloth cover for my dry cleaning so they don't use the plastic, which is really good and it doesn't bring toxins into your home."
"I do not use plastic as much as I can," Pinto said. "I just avoid it. I carry water in a glass bottle instead of buying plastic bottles of water."
Meanwhile, Annalynne McCord says she's taking some eco-friendly tips from our neighbors to the north. "I've been in Vancouver for the last couple of weeks and they put our recycling to shame," the 90210 star told us at the Trident Liberate Fun Tax Day event in Hollywood.
"They have videos showing you how for tourists like me," she continued. "They have the recycle bin for bottles, cans, plastics and aluminum. Then they have the organics where you actually throw the food away. Then they have the paper recyclables...I'm going to try and be a catalyst for that here in the U.S."
GCB star Marisol Nichols even makes her own toxin-free household cleaning products.
"A great disinfectant, believe it or not, is hard-core vodka," she said. "It kills everything! And you can spray it on a cutting board or your fingers after you use the bathroom. It will kill everything. Just vodka in a spray bottle. Real simple and you're not using chemicals or anything."
The Secret Life of the American Teenager's Renee Olstead has a big taste for being green—literally!
"Vegan is the easiest way to go green," she told us at The Avengers premiere, saying she's cut out dairy from her diet. "I feel really good now that I've gotten rid of it."