actually it's very sustainable for ppl in America. we export a shitton of food (and through that water), we just gotta stop. were one of the less dense countries and have plenty of arable land etc.
i do feel for the rest of the world tho, they prolly gonna have to take a downgrade in they standard of living.
source: https://www.agfoundation.org/common-questions/view/does-the-...
were a net exporter by $ and a lot of what we import is expensive shit without much calories (cofee, chocolate) not actually calories.