Comment by pfdietz

> Anyway we have great carbon capture machines readily available. All plants and trees do this naturally.

The Achilles Heels of this are two: (1) the very low efficiency of photosynthesis, necessitating very large areas of land (PV with BEVs is ~100x more land efficient than ICEs with biofuels), and (2) the enormous amounts of water required, as plants transpire water through the pores that admit the CO2 in the first place.