i always assumed ethanol production was encouraged by the govt precisely to spur excess production of corn so as to make our food production more robust. i.e. during a bad year of food production, halt ethanol production and redirect that excess of corn back into the food supply; crisis averted. is that not the case?
Corn and ag subsidies have as much or more to do with govt "buying" surplus and "selling" it to foreign countries as part of aid packages. And dominating the world grain market, which gives the US even more indirect control over foreign grain growing capabilities, making others reliant on the US. (Bc investing in local production is risky when the US can just flood the market.)
Separately, most corn grown for ethanol or animal feed isn't going to directly be rerouted to food supply, unless we approach a full collapse type situation (and even then, it would be more market and regulation collapse and black market emergence than due to policy changes).
But keeping those farmers in business and capable of growing table corn next season (with minimal capital investment or changes to practices required) accomplishes roughly the same thing.
There was a time when I wasn't a fan of the government subsidizing farmers with policies like that, but the cost of underproduction of food is too high, and it's not a problem markets will solve, so it makes sense for governments to step in and overproduce food.
EVs are wonderful in certain places: cities, suburbs, etc. Where I sit it’s -10F, and everyone with an EV either can’t start it at all or has to ride in it with no heat—-which can be life-threatening. EVs will reduce our demand, but never eliminate it due to such edge cases.
I don’t have a reference for this, but I seem to recall that corn ethanol in particular produced more CO2 in its production then you saved by burning it.
(Might have been a different ethanol. There are many things that can be turned into ethanol, and it matters if some are worth it and others are not).