4. Problem
CO2
emissions per passenger kilometre
Domestic, short distance, less than 463 km (288
mi): 257 g/km CO2 or 259 g/km (5.6 oz/mile)
CO2e
Domestic, long distance, greater than 463 km
(288 mi): 177 g/km CO2 or 178 g/km (3.7 oz/mile)
CO2e
Long distance flights: 113 g/km CO2 or 114 g/km
(2.5 oz/mile) CO2e