Our ecosystem was dying. All of humanity's hope lay in Panacea: a scientific miracle that would repair the damage caused by centuries of hubris and neglect. Perhaps it was the sheer bulk of pollution to ingest. Maybe it was a flaw in the design of Panacea itself. Whatever the cause, humanity only had the briefest flight of hope before careening to the very brink of extinction.
This is a companion discussion topic for the original entry at https://rpgtrader.com/products/7848/dead-air-seasons-quickstart