This reminded me of John Livingston (http://www.thestar.com/news/insight/2007/04/08/the_greatest_environmentalist_youve_never_heard_of.html). Anyone thinking about conservation or its arguments ought to check out the John A. Livingston Reader http://books.google.ca/books/about/The_John_A_Livingston_Reader.html?id=WyMNGHanMOsC&redir_esc=y