If you are interested in learning more about a particular topic, this appendix has lists of resources to check out. There are detailed books and magazines that present a variety of information on various topics. You may be surprised at how many experts are trying to protect the environment with efforts that range from extreme to pragmatic. Some authors have written numerous books on environmental topics, so be sure to check out other titles. Web sites provide the latest information and are a good source for local causes and events.