text: In Bogota Colombia, a program that is set set to spread to other countries. This program is called "Car-free day", millions of Colombians hike, bike, skate, or take buses to work during this day. This day also brings avoidment to traffic jams. Some citizens say it is a good way to lower air pollution. Less car usage is helping to clean the air. This generation needs to understand that if we want a clean future for ouselves and our families.