1. I think this is a fantastic plan. I think that vertically integrated petroleum and coal companies should be forced to cease creating CO2 pollution. This shou

1. I think this is a fantastic plan. I think that vertically integrated petroleum and coal companies should be forced to cease creating CO2 pollution. This should happen immediately. I am satisfied if nothing is done on the consumer side. \s 2. Carburetors aren't even on the exhaust side of an engine. Most cars don't have them any more (fuel injection), they mix air and fuel before it enters a cyclinder. You must be thinking of a catalytic converter, and that is still incorrect. 3. The only thing that stopped cars from spitting out lead was law and regulation in the US that banned tetraethyl lead additives.