How determined are our heroes to overheat their hearth? A cosy 1.6 degrees, the projection or hope of a sceptical few, will open up the tundra to mountains of wheat, Baltic beachside tavernas, lurid butterflies in the Northwest Territories. At the darker end of pessimism, a wind-torn four degrees allows for flood-and-drought calamity and all of turmoil’s dark political weather.
