Making the case that green schools are healthier schools. According to an article in the October 2009 edition of School Planning & Management:

[Carnegie Mellon] reviewed two studies examining the impact of improved air quality on colds and flu, and found an average reduction of 51 percent in buildings with improved air quality. Carnegie Mellon also reviewed five separate studies showing an average reduction of 38.5 percent in asthma in buildings with improved air quality.

A link to the article:

http://www.peterli.com/spm/resources/articles/archive.php?article_id=2377