Silent Spring Revolution: John F. Kennedy, Rachel Carson, Lyndon Johnson, Richard Nixon, And The Great Environmental Awakening, Douglas Brinkley, c. 2022

Simply an incredible book.

• Body: 623 pages
• Acknowledgments: 12 pages
• Appendix I: National Wildlife Refuges 
• Appenidx II: National Parks
• Appendix III: Protection for Animals, Initial Endangered Species List, 1966 - 1967
• Notes: 100 pages
• Bibliography: 13 pages
• Image Credits: 4 pages
• Index: 33 pages 
• 857 numbered pages in all. This does not include 30 pages (Roman numeral-ed) of preface.

The thread:

• Harry Truman
• Rachel Carson 
• Albert Schweitzer 
• William O. Douglas
• John F. Kennedy
• Steward Udall and Lyndon Johnson 
• Richard M. Nixon

For me it would have been a better book had the underlying theme not been "human-caused climate change." It puts the book, for me, into the "political" realm. 

Bridge Canyon Dam (proposed, never built):

• Grand Canyon is more than a mile deep, from surface to base; in some places slightly more than 6,000 feet;
• the Bridge Canyon Dam: 740 feet tall