If the world’s largest navigable river system goes dry, the economic consequences will be felt around the world.

What is the single greatest reason America is so wealthy? According to the analysts at Stratfor, it is because of a river.

They have to be joking, right?

What about America’s vast gold resources? What about its mountains of coal? America is the world’s third-largest oil producer—surely that is why. Then there is America’s temperate climate and fertile soils that traditionally make it the world’s breadbasket. And don’t forget America’s human capital, Yankee ingenuity, and Protestant work ethic. Surely these factors are cumulatively more important than a river.