OK, try this-> Drive you car into a garage and close the garage door –stay seated in the car and leave car running for a couple of hours...If you’re able come back here and post that you survived I’ll will no longer believe that millions of cars over the past and future decades are or will do any harm to our atmosphere.

Then again, if global warming “is” true, why should we care? We won’t be around to play with our great great grand kids anyway.