It's easier than you think to get your family to go green—and it can cost very little, if nothing at all. Karen and Michael Dunne of Colorado have turned their family "green" and are making a difference.

"I first became interested in going green when I read an article that said the world supply of seafood could collapse by 2048," Karen says. "I thought, 'How is this possible? This is in my lifetime.' Once we began looking at how we live, we began making small changes that anyone can do."

Watch how the Dunne family went green…and how you can too. 

From The Oprah Winfrey Show Oprah's Earth Day Event