*The Dutch airline KLM has misled customers with vague environmental claims and painted “an overly rosy picture” of its sustainable aviation fuel, a court has found.*

I saw a partly similar instance of subtle greenwashing recently: an airline company ad on a wall in Boston asserted that the gas generated by a collection of trash could power one flight per day. (Presuming, I suppose, that some planes' engines are converted to operate on methane.) It might be true -- I can't insist that it is false -- but it would make hardly any difference to the harm global heating is doing.