Leutjen isn't a fan of numbered lists of things that people can do to reduce the effects of climate change. So, what's Leutjen's advice for how we can support the planet: "I say start with the thing that makes you the maddest." "Maybe you'll go home and write some emails about that, and that makes you feel good." But if you aren't sure about what you can start doing for the planet, "some of the most important things we can do is stop doing," she adds. "Stop doing and make as big a difference as some of the things that we do do."

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Persons: Cheryl Leutjen, Leutjen Organizations: CNBC