Rampant pollution and exploitation pushed the environment beyond its breaking point. Nature reacted with vengeance, unleashing back-to-back catastrophes in the ensuing Gray Summer. Extreme temperatures, floods, wildfires and volcanic eruptions beleaguered the planet. After the Gray Summer subsided, acid rains swept across a bleak new world splintered into feudal city-states and lawless Gray Zones, washing away the last traces of the old civilizations...