Even if green commuting is your routine, track your ecological transit footprint for the week of June 3-9 and see how you and/or your workplace fare in this year's Commuter Challenge.

Don't forget: the week starts Sunday, June 3.

Even if you forget to track your movement for a few days, you can go back in add your information later.

Register now!

Login and record your details June 3-9. See how much fuel and emissions you've saved.

Calgary Public Library staff have participated since the event began in Calgary.

(If you work for CPL, your workplace is already registered. Simply register as an individual and choose "Calgary Public Library" and your location from the drop-down menu.)

The website to watch is www.commuterchallenge.ca