Cars and trucks emit more than just CO2. They also emit particulates, nitrogen oxides, and sulphur oxides in the case of diesel. Getting thousands to millions of vehicles off the road is going to dramatically reduce local pollution in addition to cutting down on CO2.
Los Angeles is infamous for being a city with a lot of air pollution (particularly smog) and so cutting down on cars commuting to/from LA should be a major priority for environmentalists.
Los Angeles is infamous for being a city with a lot of air pollution (particularly smog) and so cutting down on cars commuting to/from LA should be a major priority for environmentalists.