text: she describes what affects cars have on pollution, "Automobiles are the linchpin of suburbs, where middle-class families from Chicago to Shanghai tend to make their homes. And that, experts say, is a huge impediment to current efforts to drastically reduce greenhouse gas emissions from tailpipes....Passenger cars are responsible for 12 percent of greenhouse gas emissions in Europe...and up to 50 percent in some car-intensive areas in the United Sates" (Rosenthal). One can clearly see that cars are a major factor in the pollution dilemma that so many peole are trying to resolve. Everyone can take a part in the resolution of reducing pollution by depending less on cars and using other modes of transport such as public transportation, biking, or even walking. Some cities are placing enforcements to ban the usage of cars. Paris is an example of one of these locations. The result of the enforcemnt was that congestion (or smog) went down 60 percent. This is a great improvemnt for the city, which is known for having near-record pollution. Multiplying these enforcemnts to other cities would definitely bring down a large percent of the pollution found on Earth. This is benefiting not only the planet, but also the population that lives on the planet by enabling them to breathe healthier air.