text: Cars release a large amout of greenhouse gases into the atmospere every single day, and this is harming the environment. Experts explain that, "efforts to drastically reduce greenhouse gas emissions from tailpipes" (Rosenthal), have been taking place in suburban communities in Germany. This has resulted with a, "12% of greenhouse gas emissions in Europe... and up to 50% in car-intensive areas in the United States" (Rosenthal). Also, Paris has seen near-record amounts of pollution and smog in the city, so the global city has limited motorists' driving on two days of the week, Monday and Tuesday. The climate in Paris, "[causes] the warm layer of air to trap car emissions" (Duffer), thoughout the atmospere in the city, but the limitation on motorists at the beginning of the week has allowed the smog to clear up.