From The NY Times
*CHICAGO — Researchers for the first time have linked air pollution exposure before birth with lower IQ scores in childhood, bolstering evidence that smog may harm the developing brain.
The results are in a study of 249 children of New York City women who wore backpack air monitors for 48 hours during the last few months of pregnancy. They lived in mostly low-income neighborhoods in northern Manhattan and the South Bronx. They had varying levels of exposure to typical kinds of urban air pollution, mostly from car, bus and truck exhaust.*
I think sometimes the climate change debate overshadows concerns over pollution. Whether you believe man contributes to climate change or not, there is no doubt that air pollution is harmful - reason enough for me to support reduction in green house gases.