We're able to feed the world's population today because scientists developed disease-resistant and high-yield varieties of wheat, rice, and other crops, and bec

We're able to feed the world's population today because scientists developed disease-resistant and high-yield varieties of wheat, rice, and other crops, and because scientists developed pesticides and fertilizers. To feed a growing population, particularly with the threat of plant diseases constantly mutating, we basically have to keep doing that scientific work forever.