Swapping a car for a bicycle is a great way to lower your carbon footprint and improve your health, and bicycle commuting is taking off in several U.S. cities.
Washington, D.C. tops the list, tin part hanks to an 80-percent jump in ridership from 2007 to 2010. It’s followed by Portland and San Francisco–two cities known for their green tendencies. Further down the list are Chicago, Tucson, Austin, Minneapolis, and Boulder.
What makes a good cycling city? Recently, several U.S. cities have to tried to encourage ridership by opening bike lanes, adding bike racks to buses and facilitating bike-share programs like New York City’s CitiBike.
By positioning bikes as an alternative form of transportation, these cities cut greenhouse-gas emissions from cars, while residents gain a new opportunity to exercise.