Eschew the drive-through.
Today I found some good internet sources about engine idling. Thanks to Umbra Fisk at the Grist, our beacon in the smog.
http://www.consumerenergycenter.org/myths/idling.html I like this one especially.
If you're reading this you probably know not to idle. Perhaps these links will fortify your persuasive abilities and can help you spread the word.
14 hours ago