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You rack up some serious environmental brownie points every time you take your bike out for a spin. Then again, says the Sierra Club says, there's green and then there's really green. Are your favorite cycling outfits made of aerodynamic miracle fibers, for example, or do you pedal with whatever you happen to be wearing that day? What do you do when your bicycle chains get dirty? Or when you install a new inner tube?
Find out which shade your cycling style falls into with the non-profit's online quiz, and how you can become an even better cycler for the planet. Don't forget to test your laundry, plastic , polar bear, and green I.Q.s while you're at it. ::Sierra Club
Difficulty level: Easy

























