“Of course, air quality isn't perfect, and could get better. "While our air quality has certainly improved over the last few decades, there is still work to do--ozone and particulate matter are still problems... "...about 142 million people still live in areas in the United States with unhealthy levels of air pollution....” Please visit this link to read the full article: popsci.com NOTE: Photo also from popsci.com |
No comments:
Post a Comment