Julianne Moore believes that every child has the right to breathe clean air, and is expressing that in a video for the Moms Clean Air Force, calling on parents to fight air pollution by speaking up to public officials about the issue. With the 1970 Clean Air Act in jeopardy from industries, lobbyists and politicians seeking to annul or defund the Environmental Protection Agency, the message is particularly timely.

“Clean air should be above politics," Moore says. "The discussion about regulations to protect our air has gotten so polarized that we have forgotten an important thing: We all breathe the same air. And all our children suffer because of pollution. We don't have to choose between a healthy economy and a healthy environment. We can have both. We can have what's best for all our children." She invites people to get involved by signing up at their website.

Moore, the mother of two, has a history of activism, particularly with social issues and those relating to children. “We respond to things that move us personally. A lot of my issues are about early childhood education and poverty in the United States, because I moved around a lot as a kid. And I saw it. It is always important to address that sort of income inequality here--especially with children,” she reveals.

Moore will play Sarah Palin in the HBO movie “Game Change,” about the 2008 presidential campaign, premiering Mar. 10. “In my portrayal, I tried to be as balanced and as fair as possible using the tools that we had,” says Moore, who read Palin’s books and others and studied news footage and photos for research to approximate her movements, mannerisms and way of speaking. Replicas of her clothes and glasses, hairstyle, and makeup “helped tremendously,” adds Moore, who spent 2½ hours in the makeup chair every day.

“Obviously I am never going to be her. But I need to portray her as precisely as possible,” she adds, pointing out some eye opening things she discovered about Palin. “She was only allowed to talk with certain media outlets. Everything she said was prescribed. She didn’t understand why they had brought her in as a vice presidential candidate for her abilities and then not let her use them. I was not aware that campaigns were conducted that way. And I certainly wasn’t aware that people are educated, dressed, made up,” she notes. “That is much more like what we do in show business.”

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Julianne Moore fights for clean air, plays Sarah Palin
Actress stars in anti-pollution video, HBO’s 'Game Change'.