text: ,after enforcing a driving ban, the air cleared after an almost record setting pollution fog (source 2 paragraph 10). Places in Asia like Beijing, China are just filled with smog in the air. The citizens walk around with masks because of the heavy pollution. That is physically dangerous for not only the adults, but the children of the communities. There has to be some alternatives to using cars in excess. Almost anything can be an advantage but when it is used too much, it will always be dangerous.