Founded in 2007, Carbonrally is an online community that provides a fun approach to reducing global warming. They hope to create big change through small actions.

Featured challenges are posted every few weeks and offer easy-to-do things for individuals to cut back:

• Green Ham and Cheese: packing waste-free lunches for one month (which can reduce your carbon dioxide emissions by 44.6 lbs.)
• Curb Your Hunger: avoiding drive-thrus for food, ATMs, etc. for 1 month (which will reduce your CO2 emissions by 4.9 lbs.)
• Paper Cut: reducing your printing a little per day, or go cold-turkey for 5 days (which reduce monthly CO2 by 7.6 lbs.)

Participants may also choose to compete in a League format where teams go head-to-head with challenges.

Get your family signed up. Encourage your local schools to participate. Spread the word in your community. Share Carbonrally and have fun while helping the environment.