Population growth is causing many problems for our . The atmosphere is getting hotter and hotter because more and more trees are , especially in tropical rainforests. People need more room to live and take away the of animals and plants. Cities produce a lot of , which they cannot get rid of.

Farmers cannot produce enough food to the growing population. They must grow more food on the same land . This means that the quality of the is getting worse. Many countries must already buy expensive food from countries and in some areas people don’t have enough clean drinking water either.

In countries families have too many children . The family in Africa has five children and young people have to for their parents and grandparents.

will be going up over the next , especially in Third World countries. Governments cannot enough jobs to give work to younger . People who are out of work try to get money by doing things like stealing or dealing with .