That's an underground water resource roughly the size of Lake Ontario, but it varies considerably in depth from Nebraska to north Texas. Once it's drawn down, agriculture in that region will have to revert to dry-land practices. This is a one-time bonanza and we can see the end coming. Globally, modern agriculture will be affected by climate change. While on-farm activities account for only about 2 percent or 3 percent of total fossil fuel used, a good bit more fossil fuel is used to transport food long distances from where it's grown and produced to where it's consumed.
Soil loss is another problem that's both serious and showing up worldwide.
Now let's assume that he's half wrong. So we're drawing down biological potential and ecological resilience, and we're not paying the full costs of doing so in the prices we pay. We don't pay the full cost. We don't factor the draw down of biotic potential into prices. We were blessed with a very biologically rich continent, and we're rapidly impoverishing it.