Colorado Earth Day success story: Quietly, consistently, air quality improves - Colorado Politics
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Colorado Earth Day success story: Quietly, consistently, air quality improves

Author: Tim Jackson - April 18, 2014 - Updated: April 18, 2014

Have you heard the good news on the environment? Well, it’s not exactly new but it may surprise you. Since 1980, emissions of six common pollutants have declined by two thirds, according to the federal Environmental Protection Agency. Meanwhile, the U.S. population increased by more than a third, energy consumption grew by more than a […]

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Tim Jackson