What Happens when a Cascade of Crises Collide?

Thomas Homer-Dixon and Johan Rockström argue that global crises are accelerating in their occurrence, amplifying in their effects, and synchronizing due to largely unseen causal connections between them. The result is a polycrisis, a term that “implies that humanity is dealing with a complex knot of seemingly distinct but actually deeply entangled crises.” The authors call for international scientific collaboration to investigate the positive feedbacks that may be worsening the polycrisis.