All Warm Inside

AITOOW wonders why we (those who won't be flooded) are fighting global warming? We need more water and land for a rising population. Doesn't warming provide both of those? Plus the land can be farmed. That means more food. It might leads to natural resource discoveries. And most of the "new" land will be controlled by Caucasians. Has anyone even calculated the net land gain/loss? Or are we going to be directed by a few Pacific Islanders and a swamp in Italy and the Netherlands?