Environmental Science 15th Edition by Scott Spoolman,Tyler Miller

Exercise 23

What is the key concept for this section? List three factors that account for the rapid increase in the world's human population over the past 200 years. Summarize the three major population growth trends recognized by demographers. About how many people are added to the world's population each year? List eight major ways in which we have altered the earth's ecosystem services to meet our needs. Summarize the debate over whether and how long the human population can keep growing.