Pulled a bone head move (blond moment)

ZeeBabar

"The study found that if people would just knock off unnecessary idling of this sort, then consumers as a whole would save $5.9 billion per year on fuel costs (based on the cost of fuel in 2008). The saved emissions, the study noted, would be "larger than the emissions from the soda ash, aluminum and limestone industries combined."

Course, if you don't care...