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Technically, we are already there.

All cars sold today are able to run on biofuels: ethanol for gas cars, vegetable oil for diesel.

It is not manufacturers fault if people put fossil fuel in them...

Of course, I am being sarcastic, but while electric and hydrogen cars seem to be the obvious response, I don't see biofuels being unacceptable (and I've seen several mentions of net CO2 in articles).




> All cars sold today are able to run on biofuels: ethanol for gas cars, vegetable oil for diesel.

Cars adapted to E10 or E15 won't run on pure ethanol. You can probably run diesel cars on vegoil but I expect problems cause it's more viscous. Talking about Europe here, not LatAm or Brazil.




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