“To be radical is to simply grasp the root of the problem. And the root is us.” - Howard Zinn, 1999.
There’s a page on my website where I post the powerpoint slides from presentations I conduct. I took a look at that page this morning, and over the last five years I have conducted 69 programs for various groups, or about one a month on average. I reckon that at about half of these I get the question, “what can be done”, this in regard to Iowa water quality and pollution generated by the corn-soybean-CAFO (Confined Animal Feeding Operation) production model.
People have been thinking about “what can be done” for a long time.
Because of industry and farmer recalcitrance and hostility toward regulation, various ideas for improving water quality have focused on either (1) enticing farmers to voluntarily adopt practices that reduce erosion and nutrient loss without major modifications to the production system or (2), promotion of concepts like increased crop diversity and improved soil health that do require substantial management changes.
I suppose you could also throw land retirement in there, but this has not been tried on any significant scale in Iowa since the 1980s.