I not a perfect solution, I’ve just went over the numbers:
I agree about the limits of biofuels, I once did a study 2 years ago on cellulose to ethanol and found that if we converted all agriculture waste in the USA it would only replace 16% of USA gasoline (7% of oil use), we would need energy crops, lots of it, I estimated up to 45% of the nation (~20% now) would have to become farm land making energy crops to replace the nations oil use. Even with fusion oil we could not replace all of today
