text: in conclusion, i think that is good be president of a state but a president have many obligations that to accomplish.     Since the invention of the first automobiles, negative impacts such as greenhouse gases, and other enviromental effects have plauged the world in a very short amount of time. Some people are taking action, like in certain cities such as Vauban Germany, paris and Colombia, by taking efforts to reduce the use of cars for transportation. Ultimatly, as people begin the shift from autombile transport; certain economic, enviromental, and societal advantages will benifit the world we live in today.