Final answer:
North America, Europe, and Asia are expected to have at least 15% more of their population living in urban areas in 2050 compared to 2020. Africa is also projected to experience significant urbanization.
Step-by-step explanation:
According to the United Nations, it is projected that 68% of the world population will live in urban areas by 2050. While North America, Europe, and Asia are already highly urbanized regions, it is expected that all of these regions will have at least 15% more of their population living in urban areas in 2050 compared to 2020. Africa, on the other hand, is currently less urbanized, with only 40% of its population living in urban areas, but it is also expected to experience significant urbanization in the coming years.