Then may I asked you, owning a car ,especially here , is it a necessity or a luxury? What you see unimportant or unnecessary, is someone else's priority. You can live without owning a car, and you can live without smoking. But how someone wishes to do with their income, is none of anyone's business. My point here is very simple. What you see as your necessity, doesn't gives you the right to override someone else's choice. What you see as your necessity ( in this case driving a car) doesn't give you anymore right to release so much carbon monoxide into the air when you start your engine everytime. Like it or not, you have just contradicted yourself when you accuse a smoker for exhaling unhealthy second hand smoke. Per exhale of smoke from a cigerette vs per omission of the monoxide from your car, in terms of volume, which is more? Mind you, you can die in your own car , when you breath carbon monoxide released by your own car, into your own car with all windscreen up.should you taper with the car's sysem, only within minutes. Would you like to try? Don't be so narrow minded as to think someone here is picking up a fight, when he is hightlightng a fact which many overlooked, when they point finger at others, only to realize they are also contributing to the pie, if not, even more. You campaign fervently to save the trees, to save illegal lumbering and deforestation, yet you can't wait, to get hold of your Straits Times first thing in the morning, just to read how your shares are doing. And I hope your shares have nothing to do with timber products.