Not a joke. I had this idea about 5 years ago. I even posted it in the Buffy thread when they were thinking of bringing back Global Warming. (GW was accidentally over-nerfed) I never did manage to do a test game to see if the map's base pop is actually lowered when the tiles change. This was going to be my secret to approach Infinite score! Reduce the map to close to ZERO food. (non-water map) But global warming is no longer really active after they 'tweaked' it years ago. edit: it would be best suited for a Time game.