Making the combustion engine and all the supply processes required to run it carbon-neutral, or at least almost carbon-neutral, would surely be the ideal compromise between the need to reduce reliance on fossil fuels without upsetting motoring traditionalists.
The good news is that there is a way – hydrogen. While it’s not widely used in practice, hydrogen can be burned in place of traditional combustion engine fuels like petrol and diesel, while producing almost no gas…
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