writes "Pollution is becoming a very large issue in major cities due to the amount of vehicles on the road. To try and help this issue Paris just banned all vehicles on alternate odd and even license plates today and tomorrow. Of course, electric cars and hybrids are exempt from the new restrictions as they aren't part of the problem, rather they are seen as part of the solution. Naturally taxis, buses, emergency vehicles, and cars carrying three or more passengers (hooray for carpooling) are also exempt. High levels of particulate matter are blamed for all the various respiratory diseases, while higher oxides of nitrogen are a primary cause of smog. We'd have to say that this ban probably won't be the last one as traffic levels increase over time."