More reasons for reduced guilt while flying
I FEEL LESS GUILTY flying on vacation now that I’ve compared flying with driving by car. Both contribute to global warming about the same.
Comparisons between the two are tricky because there are many factors like the efficiency of the car and how many are traveling. And the distance the plane flies: more fuel is used on takeoff so longer flights are more efficient. The University of Oslo has weighed these factors and concludes: “With only one passenger in the car, corresponding to 20-25 per cent occupancy, the climate impact is at the level of an average air trip (Yale Climate Connections).”
My burden of guilt might be reduced even further. Canadian airlines are looking at using renewable energy rather than fossil fuels. (Globe and Mail, July 25, 2017)”.
Air Canada has flown eight times on biofuels, most recently from Edmonton to San Francisco on May 2, 2018. The flight reduced carbon emissions by over ten tonnes, a 20% reduction in net carbon emissions. This is equivalent to taking 26 cars off the road for a month according to Air Canada. They are careful to say that the growth of biofuels can’t come at the expense of food crops. That should be easy because some land that is unsuitable for food may be fine for biofuels.