I just read the article about vehicle idling and the dangers of having a car stolen. I certainly can sympathize with those who don’t want their cars to cool off in cold weather. However, I wish there had been some mention of fossil fuel waste. Just imagine, if no one idled, except when they really had to, how much of the vehicle emissions would be removed from the air. For most cars, if you idle more than one or two minutes you are using more fuel than if you turned the engine off. Small trucks take a little longer (diesel is something else altogether). Whether or not you are worried about having your car stolen, it makes sense to turn it off.