[bloak]

That comparison makes no sense because the ICE car is releasing carbon taken (mostly) from petroleum while the human is releasing carbon taken (mostly) from the atmosphere via plants and animals.

[throwaway3b03]

Well, years ago, I was running my indirectly injected diesel straight off sunflower oil, so that was plant based too.

But your point is valid. Comparison is still useful for getting a grasp of the quantities involved.