How dare you drive! Driving your car creates 404 grams of CO2 per mile. We're daring you to ditch the car to reduce your carbon footprint. For every Strava activity, calculate the CO2 you saved, record it in Google Sheets, even plant a tree using the MoreTrees service to ensure that you're carbon positive. Better yet, the applet will let everyone else know about how green you are by sending a with how carbon you've saved! Greta betta not see you drive your car!