This from a promotion piece from the Massachusetts Institute of Technology:
“Humans produce food in record abundance, and food in most places is more affordable than at any time in human history. But our progress has brought us unexpected trouble. Human diets have changed radically, not just in wealthy countries but around the world. Obesity and malnutrition now exist side by side. Farming has become an oil-intensive business and a significant contributor to the problems of climate change; the food system now uses more fossil fuel than any other sector of the economy. And, at the same time, food has become a vehicle for disease — the number of outbreaks of foodborne disease is rising, and food is moving across borders at record rates.”
And that does not even mention all of the questions arising from genetic modification of crops whether for livestock feed or for human consumption. The genetic modification of livestock and fishes destined for human consumption has even reached approval stages. The unforeseen consequences of releasing GMOs to the natural environment are potentially catastrophic. Already food products include those from hormone injected and antibiotic treated animals; a great cause of concern among the medical community.
In short, human beings have chosen to try to operate food production systems outside of the healthy boundaries existing in natural systems. The only answer has to be to return to principles of “organic” farming on a family farm scale. Anything less than this reversal to earlier ways will leave us with an unsustainable, unhealthy food supply system.