Korea encounters catastrophic weather events, contributed by global warming. Korea is affected by ocean storms and ensuing heavy floods, and the death toll after the worst floods has risen to thousands. The great flood causes a nationwide blackout, resulting in the near collapse of the government’s functions. The fundamentals of Korean society are destroyed as the Korean government cannot provide basic services for the recovery from the disaster. Accordingly, it can be called the collapse scenario rather than the crisis scenario. Environmental degradation is a main driving force for this scenario.