. Two global projections of climate change health impacts have been conducted since AR5. The first focused on cause- specific mortality for eight exposures for 2030 and 2050 for a mid- range emissions scenario  and three scenarios of economic growth . The study estimated that the climate change projected to occur by 2050  could result in an excess of approximately 250,000 deaths yr-1, dominated by increases in deaths due to heat , childhood undernutrition , malaria  and diarrhoeal disease . Overall, more than half of this excess mortality is projected for Africa. Near-term projections  are predominantly for childhood undernutrition  . The second study  focused on all- cause mortality associated with warming under both a high emissions scenario  and a middle emissions scenario . The analyses created a metric of death equivalents that accounted for hot and cold temperature-related mortality and the costs of individual level adaptation; no acclimatization or community-level adaptation, such as early warning systems, were incorporated. Average annual temperature- mortality-income per capita relationships estimated from pooled data from 40 predominantly middle- and high-income countries  were applied worldwide. Under the high emissions scenario, climate change was projected to result in approximately 85 deaths equivalents per 100,000 population.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report