He's been one of the few world leaders brave enough to say -- publicly, not just privately -- that the current system is unsustainable.
In return for that honesty the Prince has been attacked on many occasions by defenders of the status quo.
It is overly centralized and industrialized, overly controlled by a handful of companies, overly reliant on monocultures, pesticides, chemical fertilizers, chemical additives, genetically modified organisms, factory farms, and fossil fuels. The real costs are much too high, and they are being imposed on some of the poorest and most vulnerable people in the United States.
Organic food, for example, isn't just better for the soil and the land.
They are sold the most processed, unhealthiest foods.
And they can least afford the health problems that result.
It's better for the human beings who work the land.
There is some scientific debate about the health effects of pesticide residues, at minute levels, in food.
Because a food system based on poverty and exploitation will never be sustainable.
The founders of the organic movement understood that the health of people, livestock, and the land cannot be separated from one another -- they're indivisible.