7 billion people and counting
Thanks to modern medicine, people are living longer. But can our planet support such a large population? Experts weigh in on the subject, introducing readers to ideas and key details, including how populations grow, change, and how trends are measured. Take Action boxes suggest research activities students can do to increase their understanding of the issue. Appendix, Charts, Graphs, Tables, Fact Boxes, Full-color photographs, For Further Information Section, Glossary, Index, Sidebars, Web Sites, Chapter Notes.
