Our carbon footprint by Scope and Source Activity (2019) Results of Twilio Inc's carbon Scope Activity Tonnes CO₂e footprint assessment by Scope 1 Refrigeration & A/C/ 63.78 scope and source activity Vehicle fuel usage 1.24 Scope 1 Sub Total 65.12 Scope 2 Electricity generation 4,618.89 Scope 2 Sub Total 4,618.89 Scope 3 Flights 10,490.89 Data Centres 1,597.64 Electricity transmission & distribution 325.28 Taxi travel 158.21 Employee owned car travel (grey fleet) 63.62 Rail travel 52.30 Water (and wastewater) 38.12 Bus travel (shuttle service) 17.86 Scope 3 Sub Total 12,743.93 Total tonnes of CO₂e 17,427.95 Tonnes of CO₂e per $M turnover 15.42