But climate change is a gradual process. Some land is lost in X, and gained in Y. That land in Y will be close to where farming currently happens and with a de

But climate change is a gradual process. Some land is lost in X, and gained in Y. That land in Y will be close to where farming currently happens and with a delay of a couple of years the farmers can extend northwards a little bit. I can't see how such a slow process could lead to a 'shortfall'.