As it is the environmental toll is mind-boggling. I'm talking about global food security based on sustainable, regional, organic and least-toxic farming.
Agribusiness is more economics than science, although science happens.
Agriculture in general is a highly technical undertaking, especially the organic and least toxic sort. I'm afraid mere science will not make this world more liveable. It's what we do with it and how wisely we apply it. There are too many contraindications to consider pesticides and genetic engineered food to be a safe solution.