I need help choosing a topic?

For calculus cl we have to choose a topic about how a particular subject correlates to something else. For example, a topic could be, explore the idea that such widespread use of iPods is lending itself to an increase in childhood deafness. The topic I choose has to have a lot of statistical information. Also please keep in mind that the paper must be at least 5 pages so it has to have a lot of information on it.