OT: I know how to solve global warming

[Hunpecked]

Renegade, it's difficult to correlate the rising prevalence of asthma in the US with rising pollution because air pollution has in fact been decreasing for some 30-odd years:

http://www.epa.gov/airtrends/highlights.html

While its pathophysiology is extremely complicated, at least part of the increase in asthma may, surprisingly, be due to improved hygiene:

http://en.wikipedia.org/wiki/Hygiene_hypothesis