South Bend Tribune: They can't sit idly by on this environmental issue

It is estimated that for every 30 minutes of idling, one-tenth of a gallon of gasoline is used. That's an average of two pounds of carbon dioxide. These numbers are for a car or light truck; the larger the vehicle's engine, the more gas is wasted by idling.You, too, can help by shutting off your vehicle in fast food and bank drive-throughs and while waiting at the railroad tracks. It is the cumulative effect of these little actions that will determine whether or not we leave our children's children with a habitable world. Let's face it: Most of us won't live to see the adverse effects of this.