My own analysis of my local (mid-sized city) transit data from the National Transit Database, using actual gallons of fuel spent, and comparing CO2 emissions of

My own analysis of my local (mid-sized city) transit data from the National Transit Database, using actual gallons of fuel spent, and comparing CO2 emissions of the average passenger car, the buses are net adding CO2 to the environment. Indeed, hybrid buses are barely more efficient than traditional diesel buses. Would you mind sharing your stats?