What are some of the main points the author tries to make through this work of historical nonfiction?

The author points out that despite man's best efforts, nature is stronger and can thwart even the best plans. He reveals that humans often cause, inadvertently, destructive actions and disorder of the natural order of things. He also shows that money, power struggles, and conflicting interests can contribute to significant problems in places that are prone to dramatic changes from forces of nature.