Growing data shows that concentrations of CO2 are dangerously high in school drop off zones.

“The use of private vehicles can significantly increase local concentrations (of air pollution), regardless of background conditions,” say University of Toronto researchers Matthew D. Adams and Weeberb J Requia in their paper “How private vehicle use increases ambient air pollution concentrations at schools during the morning drop-off of children.”

Dads Against Dirty Air (DADA) provides tools like newsletter articles, traffic signs, and banners that encourage drivers to turn off their engines. Go one step further, and leave the car at home!