I have to travel soon and I have two options. One is to fly for 3 hours, another is to take a high speed train for 11.5 hours. The flight ticket is about 100 USD cheaper than the train ticket.
My aim is to minimize the environmental impact of my travel. So taking the train seems to be the obvious choice. But I wonder if I'd better save the 100 USD and donate the money to organizations such Clear Air Task Force or Sunrise Movement, which may actually have better impact on the environment?
According to Founders Pledge estimates, the CO2 savings from donating 100 USD (maybe 1 ton per USD, with high uncertainty) will greatly exceed the emissions from your flight (which might be on the order of magnitude of 1 ton) [1]. Donating USD 100 to Atmosfair, while less effective, would also offset this flight [2]. If you include the value of your time, the cost of the train trip might be far, far higher.
Plane emissions are further complicated, if you live in the EU, by emission certificates - which might cause a counterfactual CO2 saving, when deciding not to fly, of almost zero.
I personally stopped flying in 2015 - but not out of EA considerations. I made that decision because it feels good and unlocks new forms of adventure. It also simplifies my life (by removing certain travel options) and opens up conversations with interesting people who pursue the same lifestyle. I also consider it an exercise in personal growth. It is not a good way to help the climate when compared with donations, and I am open to the possibility of flying again in the future.
[1] https://founderspledge.com/research/fp-climate-change
[2] https://www.atmosfair.de/en/offset/fix/
This is not a full defense of my normative ethics, but I think it's reasonable to "pull" in the classical trolley problem, and I want to note that I think this is the most common position among EAs, philosophers, and laymen.
In addition, the harm from increasing CO2 emissions is fairly abstract, and to me should not invoke many of the same non-consequentialist moral intuitions as e.g. agent-relative harms like lying. breaking a promise,... (read more)