Negligible.
Large non corporal entities are structured such the vast majority of any benefit they provide is concentrated in a vanishingly small population and costs distributed over the largest population possible. That is the whole point.
We need to lay all these informations on a large map, so we don't have to speculate. That said, I'm sure most of the western world is in blind oppulence. So much shit is thrown out or spoiled for no reason it's crazy.
At least in America, food is basically free. If you are fine with eating the same food over and over again and have time to cook, you can eat for $10 per week in most places. Rent and higher education, on the other hand...
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.
Carburetors have nothing to do with lead emissions. Lead emissions come from lead being added to gas to raise its octane, and hasn't been added for years.
I might be wrong but as far as i know they were added while there were still lead in the gazoline. Anyway it didn't hurt the normal person it helped them because techonology.