In the U.S., which has invested more in highways, public transit use has fallen dramatically since the 1960s,5 and transportation emits more greenhouse gases than any other sector of the economy.6
In wealthy countries with a history of transit-oriented development—like Japan, South Korea, Switzerland and Germany—public transit use is high, and greenhouse gas emissions from transportation are relatively low. In the U.S., which has invested more in highways, public transit use has fallen dramatically since the 1960s,5 and transportation emits more greenhouse gases than any other sector of the economy.6