The More, the Merrier?

Isn't life more interesting when there are lots of people around? Then why should people be upset about the idea of a "population explosion"? Your task on this POW is to study some aspect of this rapid population growth and to find why at least some people are concerned.

You should then write a report on your findings, which may include your own opinions and conjectures about why things are the way they are. Graphs, drawings, and tables are often helpful.

Here are some suggestions for topics. You may choose other topics for your report.