'Like other ocean sub-regions,  are projected to warm under climate change, with increased stratification and intensified winds as westerly winds shift poleward . However, cooling has also been predicted for some , resulting from the intensification of wind-driven upwelling. 'There is medium agreement, despite limited evidence, that upwelling intensity and associated variables  from the Benguela system will change as a result of climate change.' Any projected increase in upwelling intensity has potential disadvantages. 'Elevated primary productivity may lead to decreasing trophic transfer efficiency, thus increasing the amount of organic carbon exported to the seabed, where it is virtually certain to increase microbial respiration and hence increase low O2 stress.'
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report