thanks to the true cost clearinghouse i came across this program made by the ontario medical association that allows you to calculate the costs of air pollution according to numerous criteria and very precisely. i always thought pollution should be measured in terms of health and money, not some future flooding and imperceptible global temperature change. this program is part of a new generation of calculators that allows imperceptible damage to become tangible, and the first to do so in a truly scientific way. the sooner we can readily perceive the hidden consequences of our actions, the sooner we might be able to act globally.