text: This new idea of limited car usage could improve our environment. The ozone layer is being depleted and many believe it is due to the fossil fuels being burned by cars, trains, planes, and many other types of things. If everyone did not use their car for just a few days a month, then imagine how great the atmosphere would turn out. Some people such as Heidrun Walter, a new member of a "carless" community says that, he is much happier this way.