Safeguarding Wildlife from Climate Change - NWF/NCTC Webinar Series. Presented by Dr. Erik Beever, Research Ecologist at the U.S. Geological Survey Northern Rocky Mountain Science Center. May 16, 2012.
John Opie oral history interview as conducted by Lisa Mighetto. Note that Mr. Opie is not an employee with the Fish and Wildlife Service, but is one of the founders of the American Society of Environmental History (ASEH).