Why we need engines
I read the letter by Steve Jones in the April issue with interest. However, the internal combustion engine does not have to operate exclusively on fossil fuels. Instead of being banned, internal combustion engines can actually enable a zero-net-carbon energy economy.
Fully-renewable liquid fuels can be made by recycling CO already in the atmosphere. Instead of relying on being paid a relatively small amount to put CO in the ground, the high value of transport energy is more likely to make it viable to use the air-extracted carbon to fix hydrogen as ‘electrofuel’. With such