That could well be Trump's feeble idea of how global warming works, but it is wrong. It won't simply be the Kansas wheat-growing climate migrating north. It's climate instability, like all those polar vortexes, super storms, and heatwaves we are experiencing. Agriculture depends on a stable climate. We will never see a stable climate again in our or our great-grandchildren's lifetimes. We may not even see any great-grandchildren, period.