of natural capital. Without serious emissions reduction measures, climate models project an average 1℃ to 4℃ increase in maximum temperatures and a 30% decrease in rainfall up to 2050, across CSA. Tropical SA is projected to warm at higher rates than the southern part of SA. Given these circumstances, some regions in CSA  will just meet or fall below the critical food supply/demand ratio for their population. Meanwhile, the temperate southern-most region of SA is projected to have agricultural production surplus. The challenge for this region will be to retain the ability to feed and adequately nourish its internal population as well as make an important contribution to food supplies available to the rest of the world.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report