> The correct solution to the smog problem is to impose emissions limits on all cars. If your old car pollutes too much you either pay to retrofit some modern e

> The correct solution to the smog problem is to impose emissions limits on all cars. If your old car pollutes too much you either pay to retrofit some modern emissions controls or you don't drive it on the road. That's not really nice. Some poor fellow with his old beater he drives less than 2000 km a year gets to walk home and look into spending big money because his car didn't pass some arbitrary limit. The next guy who passes the limit by a hair may drive all the 30 000 km he wants and can easily afford?