text: We depend on the Earth everyday, when we wake up we expect the sun to shine on our face and the plants expect the light from the sun to observe carbon dioxide and release oxygen, our major source of surviving. 12 percent  of greenhouse gas is due to passenger in Europe, but in the United States  it takes up to 50 percent in cars intensive. For example in Paris, they enforced a partial driving ban to clear the air of the global city from pollution. Almost 4000 drivers were charge for driving their own vehicle instead of any type of transportation on that day. If we really want to change the world and really help our planet we should follow the example of Bogota, Colombia, they set up a program that lead to a car free day, many Colombians hiked, biked, skated or took buses to work the result for this was that the streets of this capital city eerily devoid of traffic jams.