text: To begin with limiting cars can help our environment. According to the passage "Car-Free Cities" cars are responsible for 12 percent of greenhouse gas emmissions just in Europe. By limiting cars that 12 percent can go to a 6 percent or mabe lower. To add to that cars make a very big amout of smog. In the passage " Paris Bans Driving Due to Smog" it says " Congestion was down 60 percent in the capital of France after five-days of intensifying smog." that has to be a huge amount of smog fo congestion to be down 60 percent! Most of that smog id made by cars. To limit cars is to limit Pollution.