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We've designed ways to move it, filter it, cool it, and heat it, but it's still dirty. The air we breathe is greatly affected by pollutants and emissions from industry activity, so here's a great way for you to get involved in making a change.

On June 21, 2007, the EPA proposed stronger limits on smog in our air. But doctors and scientists say the new limits don't go far enough. And now powerful polluters are pushing back, trying to stop any change. Here's your chance to make your voice heard. Adopt a square mile of sky over the U.S. and sign the petition to demand clean air now.

adoptthesky.org ask you to "adopt" one square mile of sky by simply signing the petition--it's free. This call to action is organized by Earthjustice, who "evens the odds in court against law-breaking industries and government agencies, protecting the environment and human health." The movement aims to overrule polluters and industry groups that are fighting higher air quality standards and persuade the EPA to take a cleaner route. An little added incentive to sign up is the fun interactive site that shows all signatures and a map of adopted sky space throughout the US.