Their cycling outfit looks like something straight out of a ninja movie. Just as in a Hollywood film, these ninja lookalikes toil to protect the young and the old from a common threat. And as it turns out, that ninja-like mask and outfit isnt just for show. It protects bicyclists from a very real enemy: air pollution from car exhaust.
There is a strong and increasingly clear connection between car exhaust and life-threatening lung conditions. In South Korea, the number of deaths from lower respiratory conditions nearly doubled from 1992 to 2002. Worldwide, the World Health…
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