The link is to a year-old article that helped me decide not to pay Alaska Airlines’ voluntary SAF carbon mitigation fees. I’m still not certain about the right choice, and would like to hear your thoughts on the matter.

The big picture includes acknowledgement that there’s no such thing as ethical consumption within capitalism, so in some ways this choice is entirely irrelevant. Also that flying is by far the most polluting form of transportation per passenger mile so we should each minimize doing it. Finally that flying has the most challenging logistics of shifting energy sources, fundamentally because batteries are heavy.

Alaska offers me a choice during the checkout procedure to contribute to SAF accounting for between 5% and 20% of the fuel that my flight will use, but it has nothing to do with the fuel actually consumed by my flight. They are already buying some amount of SAF and using it in their SFO hub only, so the program is hand waving about the fungibility of fuel consumption. Really they’re just offering me the opportunity to donate money towards their SAF usage, indirectly supporting the growth of the SAF industry.

It seems to me that the whole SAF industry is currently greenwashing bullshit, piggybacking on the big lie from the past few decades that adding ethanol to automotive gasoline is “sustainable” in some meaningful way. But that ignores the water usage depleting aquifers at an accelerating rate, necessary fertilizer use and soil depletion, using food-producing acreage for fuel instead, energy usage in planting/harvesting/refining/distilling, and so on.

Please validate my choice not to donate to the current state of SAF, or provide links to interesting reading that supports your claim otherwise.