Also, veganic farming is a thing.

It’s probably a good idea to stop using nitrogen-based fertilizer, or at least greatly reduce usage of it, reduce pesticide/herbicide usage and decrease use of GMO monocropping. Vertical farming for non-grains is an option, too.

We’re going to go the way of the Mayans if changes aren’t made. The current slowdown and eventual population decline are also positive developments in this scenario.