Trial and error works well so long as most things are predictable. But that is not always enough.
Food often travels a long way and passes through many hands on its way from paddock to plate. This is a bigger risk than we realise.
Humans have appropriated a lot of land for agriculture. And we are not finished.
Economics will determine if global food security is even possible. What type of economic thinking do we need?
Thanks to our ingenuity, tenacity and eye for opportunity, there is no doubt that global food security is possible. It's just there are a few things that need to happen first.