SERIOUS: people will adapt.
Back in XIX century 'Muricans unironically tried to grown buckwheat in its hot lands, crying out loud how droughtful their clay is.
Then, a literal Negro writter named Carver made a proper peanut food compilation (aka "105 peanut recipes" book).
Boom. Every single farmer got his book. 'Muricans of XX/XXI centuries have a lot of protein in peanuts, while enjoying sunny land.