To the list of everything for which we are blaming the lousy economy add two ways it is negatively impacting the environment. As everyone with a car or a furnace knows, oil prices have dropped through the floor in the last two months and there is speculation that gas may be priced under $1 a gallon soon. So, naturally, people are again driving frequently, far, and alone in the car while being less conscientious about turning down the thermostat and turning off the lights. It seems we will never learn...