1) Because most people live on the coasts, they will need to move away from the coasts because of rising sea level. That means the largest mass migrations of humans that the world has ever seen.
2) Because humans must live somewhere, and that requires housing and infrastructure, the world will see the largest construction boom ever seen.
3) Because infrastructure will require such a staggering level of financing, the largest amount of government spending ever seen.
Is my logic wrong? Show me.