The claim from several chemtrail believers is that there is a "massive" increase in respiratory illnesses. http://webcache.googleusercontent.c...&gl=us&client=firefox-a&source=www.google.com but..... http://www.lungusa.org/finding-cures/our-research/trend-reports/asthma-trend-report.pdf There is evidence of increased respiratory disease "statically". But this is most likely due to increased skill in diagnosis, and from the increase in the advances of the medical industry, now giving names to previously undiagnosed ailments. http://truthmediaproductions.blogspot.com/ says.... But the Lung Association says.... So while the current rates seem to have increased, it all about the "reporting" and "diagnosis", that makes the numbers playable among "chemtrail" believers or disbelievers. PS...there is so much info on this topic....consider this post as "unfinished".