Some food for thought
I recently found myself caught up in National Geographic's "Future of Food" series, and I recommend you taking some time to do the same. A few articles of particular interest include "The Evolution of Diet" / "Carnivore's Dilemma" / "The Next Green Revolution" / "One-Third of Food Is Lost or Wasted: What Can Be Done" / "Can Farms Reduce Antibiotic Use? Dutch Farms Did" / "What The World Eats" / "Here's Why We Haven't Quite Figured Out How to Feed Billions More People".