Drought and famine in the Congo have forced 4 million people to flee.

The article says nothing about whether this relates to global heating, but since global heating makes droughts more likely in many areas, it is probable a priori that this is global heating at work.

As Africa's population is increasing rapidly, and global heating will soon start reducing agricultural production, it is clear that in a few decades Africa will not be able to feed its population. A big decrease in the birth rate is urgently needed to avoid mass starvation.