Case Histories—Lead, Ozone,
Because of the broad scope of this book, I have not been able to go into very much depth on any of the complex subjects covered so far. Obviously whole books can be (and have been) written on the subject matter presented in chapters 1 through 8. In this chapter, I will try to probe a bit deeper into the history and current status of four specific examples of environmental and public-health issues that I believe illustrate many of the points I have been trying to make. These examples, or case histories, are each about a particular issue that at one time or another was a major environmental and/or health concern. The four case histories include a case of toxic environmental pollution (lead), a planetary environmental crisis (the ozone layer), a serious and ongoing public-health threat (tobacco), and a perceived problem that really isn’t one (genetically modified food).
The history of the remarkable revolution leading to the removal of lead from the human environment makes an interesting example of a very complex set of actions and reactions involving all the players who usually have a role