text: Car pollution is at its all time high, in paris motorists were ordered to leave their cars at home due to smog. 67 percent of vehicles in France use diesel fuel. Only 53.3 percent make up the rest of western europe. passenger cars are responsible for 12 percent of green house gases, and up to 50 percent in some car intensive areas in the united states. Chicago to Shanghai people tend to make their homes which is a huge reduce of green house gas emissions from tailpipes.