Segment 1: If Kansas City wants to go green, we have to drive less. Can we do it? Transportation is the biggest source of carbon dioxide emissions in the United States, with most of that coming from cars and trucks, but how realistic is it to expect people to break up with their cars in a city that was built for the automobile? Angie Schmitt , author, We Can't Stop Global Warming Without Reducing Driving Michael Wells , Missouri Valley Special Collections Librarian, Kansas City Public Library