text: Another reason why people want to limit their usage on cars is because of all the pollution cars create. Passenger cars are rsponsible for 12 percent of greenhouse gas emissions in Europe and up to 50 percent in some car-intensive areas in the United States (Source 1). Not many people think about the effects of air pollution like smog, but it is a big deal. Since people don't think about it often, there is no way for the majority of us to try and find a solution to put into action to stop it or help it go down. In Paris, there was a partial driving ban to clear the air around the city (Source 2). Paris' partial ban was their idea to try and make their city a better place. With the ban being enforced and put into play there  were about 4,000 drivers fined (Source 2). It turns out that since the driving ban was made the congestion, car traffic, had gone down 60 percent in the capital of France, just after five days of less smog pollution and Paris is typically known to have more smog than any other European capitals (Source 2). This goes to show, that slowly people are actually becoming aware of what's going on and they actually care enought to try and make things better.