Governments must reconcile dissonant climate assessment approaches

Nature Climate Change, Published online: 29 September 2026; doi:10.1038/s41558-026-02736-4Security analysts and government economists increasingly present policymakers with different pictures of the same climate and nature risk. We argue that governments need a shared way to weigh these assessments, particularly given that under-preparing for a severe, irreversible outcome costs far more than over-preparing.