text: The atmosphere has been at an all time high in pollution, smog and green house gases are effecting cities. In Paris, France near-record pollution has been occuring and Paris decided to enforce a partial driving ban to help clear the air of the city. According to the article "Paris bans driving due to smog" by Robert Duffer, congestion was down 60 percent in the capital of France, after five-days of intensifying smog. Coldnights and warm days caused the warm layer of air to trap the car emissions into the atmosphere. In Bogota, Colombia there is a declared day without cars in the capital city of 7 million people. According to the article "Car-free day is spinning into a big hit in Bogota" by Andrew Selsky, the turnout was large and even the rain wouldn't stop them from participating. Carlos Plaza which was interviewed for the article stated "It's a good opportunity to take away stress and lower air pollution. Using less cars will have beneficial implications for carbon emissions and the environment, since transportation is the second largest source of America's emissions, just behind power plants according to Elisabeth Rosenthal author of "The End of Car Culture". Overall limiting car use will be a big factor in conserving resources and lowering emissions.