Thanks for the video. In teresting! There have been a lot of articles in the paper recently giving the same advice. However, I am NOT nearly at the point that I will give up the air conditioner and drive with the windows up. If I had wanted to do that I could have saved about $800 by not getting the air in the first place. Of course, I could have saved $17,000 by not buying the car also, but that wasn't the reason I got it. Will use SOME common sense but not about to walk everywhere yet.