What will happen if the world population continues to grow at the same rate ?

The projection for population growth in this century will happen in developing nations - nations that are having difficulties coping with their current population and struggling with their economies. They have poor sanitation, illiteracy, wars, poverty, dwindling natural resources, poor waste management and so on.

These countries have more pressing problems and they devote less time, budget and energy to addressing environmental issues – unlike the more developed countries. 

Nigeria and south africa