Public Transportation

If you have access to it, public transportation is an important step in greening your life, because it cuts down on your environmental impact. Mass transit options transport larger numbers of people in a smaller, more efficient manner than solitary commuting by personal vehicle. Many cities have great bus and rail transport systems for the residents' convenience and decreased carbon footprint. (Photo: Flickr)

10 of the strangest public transit systems

Polluted German cities eye free public transit

Did Minneapolis just host the most public transit-dependent game in Super Bowl history?

Japanese trains save deer with sound effects

Why airports are embracing renewable energy

Check out this subway-inspired map of America's rivers

Meet Eclipse, the bus-riding dog of Seattle

Air fresheners: The secret to a better subway?

Should you stand or walk on the escalator?

Take a tour of Stockholm's most magnificent metro stations

D.C. architect eyes old Metro cars as housing for the homeless