@tomfh ... sustainable fuels are not meant to, AFAIUI, "capture carbon". The problem with burning FFs is we're adding CO2 to the atmosphere, and that CO2 was remove from the atmosphere "eons" ago, hence we're adding the the atmosphere's CO2 concentration. Sustainable fuels work by removing CO2 from yesterday's atmosphere, and putting it back tomorrow, on very short time scales, so we're not significantly changing the CO2 level in the atmosphere. I think the intention is that sustainable fuels are an acceptable replacement (option) for FF for things like airplanes that Need a very dense energy fuel. Sure, I guess others would rather we gave up flying altogether (as a luxury we won't be able to afford in the future).
"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.