Multi-hazard dependencies can increase or decrease risk

Authors: John K Hillier and Tom Matthews and Robert L Wilby and Conor Murphy
Journal: Nature Climate Change
Year: 2020

In risk analysis, it is recognized that hazards can often combine to worsen their joint impact, but impact data for a rail network show that hazards can also tend to be mutually exclusive at seasonal timescales. Ignoring this overestimates worst-case risk, so we therefore champion a broader view of risk from compound hazards.