Pick one day this week to leave your car at home and use another way to commute to work or school.

By not driving just one day this week, you will reduce your CO2 emissions by a whopping 30 lbs! 51.27 tons 3418 3418 people have reduced CO2 emissions by 51.27 tons by completing this challenge so far. That's equal to turning off the electricity of 68 homes for about 1 month! That's equal to turning off the electricity of 68 homes for about 1 month! http://www.carbonrally.com/challenges/3-bike-to-work/referral?name=Yahoo%21+Green