Substantial avoided economic damages to African countries are projected from ambitious, near-term global mitigation limiting global warming well below 2℃ above pre-industrial levels . Increased economic damage forecasts for Africa under high emissions scenarios start diverging rapidly from low emissions scenarios by the 2030s . Across nearly all African countries, GDP per capita is projected to be at least 5% higher by 2050 and 10-20% higher by 2100 if global warming is held to 1.5℃ versus 2ºC  . The probability of this positive gain to GDP per capita from achieving 1.5℃ versus 2°C is reported as close to 100% . While these estimates rely on temperature and rainfall-driven damages, SLR also poses a risk for Africa. By 2050, damages from SLR across sub-Saharan Africa could reach 2-4% of GDP, depending on the socioeconomic, adaptation and emissions scenario .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report