The most cited figure for climate mortality — roughly 250,000 additional deaths per year between 2030 and 2050, from the WHO — counts heat, malaria, diarrheal disease and childhood undernutrition, and stops there.
Asked for a mortality assessment at +2 °C and required to separate estimable exposure-response channels from those running through prices, conflict and institutional failure, three AI models refused the partition: heat mortality, they argued, is itself socially mediated.