If the world warms by 6 degrees, from a distance the ⸑1 may appear bright blue, but they are marine wastelands. Deserts ⸑2 across continents like conquering armies. ⸑3 become common events. Some of the world’s great cities are ⸑4 and abandoned. If temperatures soar by 6 degrees within ⸑5, we’re going to face nothing less than a global wipe out.