You're also assuming that plants and animals can migrate/adapt at a fast enough rate. Trees seem especially at risk. We'll move the corn potatoes and Roundup,

You're also assuming that plants and animals can migrate/adapt at a fast enough rate. Trees seem especially at risk. We'll move the corn potatoes and Roundup, but nature will have to manage the rest. If a few keystone species go who knows what havoc will be wrought.