Founded to raise awareness about global warming and support regional carbon offset efforts, the One Ton CO2 project has designed a line of t-shirts whose sale helps them offset carbon emissions. The project retires one ton of CO2 for every shirt sold; the shirt owner is invited to register themselves online, becoming part of a community dedicated to reducing CO2 emissions. While shirt sales alone won't stop global warming, it's a great way to engage in the fight and foster the global conversation. [One Ton CO2]
