Energy and Environment Mike Baltz Commentary: The Legacy of John Muir WSIU Public Broadcasting | By Kevin Boucher Published March 9, 2020 at 2:10 PM CDT Facebook Twitter LinkedIn Email Listen • 5:55 WSIU Kevin Boucher Smooth Green Snake at SIU's Campus Lake. Photo taken September 28th, 2018. An original commentary, written and voiced by Ornithologist Dr. Mike Baltz.In this program, the words written by Naturalist John Muir are read by Carbondale's John Wallace.