text: That is why we don'go to venus yet because then we would have to built better rockets. Then we would have to get astronut food and make sure they have air helment just in case. Maybe some jet packs just in case. they get stuck and cant find a way back.There are many different advantages of limiting car usage. In Vauban Germany they are supporting and embracing of living life with limited car usage. 70 percent of Vauban's families do not own cars and 57 percent sold a car to move there. Limited usage of cars is proven very heathy for the enviroment. Because it drastically reduces greenhouse emissions from tailpipes. passenger cars are responsible for 12 percent  of green house emissions gas in Europe. Certain places in Europe ban driving at times because of all the polution that occurs in the air (smog). diesek fuel is the blame for that. In france they seem to favor diesel over gasoline.