Author: Christian Siderius, Senior researcher in water and food security, London School of Economics and Political Science

Sub-Saharan Africa’s population is growing at 2.7% per year and is expected to reach two billion by the year 2050. The region’s urban population is growing even faster: it was at 533 million in 2023, a 3.85% increase from 2022. The need to feed this population will put pressure on land and water resources. I’m part of a group of researchers who have looked at whether regional food production would be sufficient to supply growing urban populations. By and large, we have found high levels of food self-sufficiency. But climate change could put a spanner in the works. We have…