[Loic]

4. We do not have enough renewable biomass to use as feedstock to replace our current use of non synthetic fuel.

Synthetic fuel from renewable feedstock should only be used where we cannot replace ICE, for example planes.

Synthetic fuel for cars is pure heresy from the environmental point of view. We already are at the limit in the production of wood pellet for heating (the forest are suffering enormously from climate change), bio gas is using not only waste but also corn and "good" crops to be produced.

And of course, the process to convert all this biomass into a fuel is consuming a lot of energy.

Please, do not dream of everything green with synthetic fuels everywhere, this can only be part of a small part of the transition.