Discuss impact on National Parks, and what we should be doing to preserve them.
Find a National Park (not a State Park): https://www.nps.gov/findapark/index.htm
Discuss:
How large is the park?
What types of wildlife are found there?
What kind of recreation is present?
Have you ever visited in person?
What are the ecological advantages of the park?
What are the economic advantages of the park?