As scientists and scholars from around the world, we call on policymakers to engage with the risk of disruption and even collapse of societies. After five years failing to reduce emissions in line with the Paris climate accord, we must now face the consequences. While bold and fair efforts to cut emissions and naturally drawdown carbon are essential, researchers in many areas consider societal collapse a credible scenario this century. Different views exist on the location, extent, timing, permanence and cause of disruptions, but the way modern societies exploit people and nature is a common concern.
Only if policymakers begin to discuss this threat of societal collapse might we begin to reduce its likelihood, speed, severity, harm to the most vulnerable – and to nature.