Grist: n the latest effort to cut down on smog, Paris has banned vehicles made before the time of the Hanson brothers, Heaven`s Gate, and Leonardo DiCaprio declared himself king of the world. This week, Paris officials said that any pre-1997 must be off the roads during weekday daylight hours.
The ban gained public favor last March, when pollution levels in Paris were higher than those in Beijing. City officials temporarily restricted what days cars with even and odd license plates could be used when…