The best part is that you can share your CO2 savings with friends through social media, such as Facebook or Twitter! It would be nice if it was possible for users not in Canada (or other countries) to also participate but I suppose this could just cost more money than we have now? Definitely consider using carbonclick when looking into options for reducing greenhouse gas emissions from travel and transportation activities. We are working towards being better stewards of our planet's resources by engaging people in ways they already enjoy - like sharing pictures via Instagram/Facebook- while doing good at the same time.