“Lake Michigan may be coming to Idaho.”That’s what an Idaho radio commentator said in June 2021. Holding approximately 20% of the world’s surface freshwater, the Great Lakes are once again a target for the drought-ridden West, which is facing climate change, massive fires, and shrinking water supplies. And in a potentially far bigger threat, Wall Street is creating markets that could lead to the trading of freshwaters as a commodity like corn or oil. The Great Lakes are in danger o...