Final answer:
Population growth is predominantly occurring in developing regions of Asia and Africa due to various factors, with environmental degradation being a major foreseeable issue.
Step-by-step explanation:
Nearly all of the further population growth will take place in the developing regions of Asia and Africa, with the fastest growing countries by population being in sub-Saharan Africa. This growth is driven by several factors including high fertility rates, limited access to birth control, and lower levels of female education. One foreseeable problem with this rapid population increase is environmental degradation, as the additional strain on natural resources can lead to more severe environmental problems such as loss of biodiversity, increased greenhouse gas emissions, and potential for greater conflict over resources. Moreover, the high rate of population increase combined with poverty, political instability, rapid industrialization, and food security challenges pose significant issues for sustainable development.