Well, OK, that might be overstating things, but the Hollywood A-lister is making her own change in the world in her own inimitable fashion, with an enthusiasm so contagious, we hope it's catching. In this video, Cameron Diaz and Marie Claire executive editor Lucy Kaylin hit the road to ferret out how average Americans feel about the environment—and what it'll take for them to stand up for their rights to clean air, food, and water. Look for cameos from warrior-visionaries like Van Jones and Majora Carter.
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