The environment

1. Pre-American ecology : environmental alteration is addressed (1100-1854)

2. Colonial environmentalism : the first land use & timber regulations (1681)

3. Transcending society : the sacrament of wilderness (1862)

4. The national park system : preserving wilderness for public use (1865)

5. Animals and the environment : creation of the ASPCA (1866)

6. The timber barons : profit vs. sustainability (1889)

7. The conservationists : save what is left of the forests (1901)

8. Naturalist in the capital, Theodore Roosevelt : American wilderness as America's cultural heritage (1908)

9. The park service : reforming the federal park management system (1908)

10. Lobbyists for life : devastating effects form unlikely alliance (1936)

11. The whole of the wild : interconnectiveness of nature (1944)

12. Change is in the air : the first Air Pollution Control Act (1955)

13. Environmental progress : synthetic pesticides and corporate accountability (1962)

14. The new danger : the protection of endangered species (1966)

15. Smoke on the water : the Environmental Protection Agency (1970)

16. The environmental days : the first Earth Day (1970)

17. Beyond the government : Greenpeace makes international headlines (1975)

18. Pollution solutions : changes in the automobile industry (1970)

19. Ozone depletion : success of the Montreal Protocol (1987)

20. Climate chaos part I : the first warning is sounded (1847)

21. Climate chaos part II : climate-change denial (1980s-2000s)

22. Globalizing environmentalism : international conferences (1972-2017)

23. Oceans in the balance : the Great Pacific Garbage Patch (1997)

24. Urbane ecology : development of green cities (1800s-present)

25. Renewing perspectives : harnessing wind, water, and sun (1960s-present)

26. Cyclic waste : reduce, reuse, recycle (1970s-present)

27. America's black heart : the debate over coal (2017)

28. Leaving the environment behind : environmental policies rolled back (2017).