had not occurred , although impacts vary substantially across countries . As such, global warming has increased economic inequality between temperate, northern Hemisphere countries and those in Africa . Warming also leads to differential economic damages within Africa . One estimate found a 1℃ increase in 20-year average temperature reduced GDP growth by 0.67 percentage points, with the greatest impacts in Central African Republic, DRC and Zimbabwe . Changes in rainfall patterns also influence individual and national incomes. Had total rainfall not declined between 1960 and 2000, the gap between African GDP and that of the rest of the developing world would be 15-40% smaller than today, with the largest impacts in countries heavily dependent on agriculture and hydropower .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report