We make a lot of green gasoline already. It's called biofuel. The problem is that it takes farmland away from producing food for people into producing food for

We make a lot of green gasoline already. It's called biofuel. The problem is that it takes farmland away from producing food for people into producing food for cars. And cars are much hungrier, filling landscapes with rapeseed https://en.m.wikipedia.org/wiki/Rapeseed https://en.m.wikipedia.org/wiki/Rapeseed