The U of Wisconsin Madison, School of Library and Information Studies offered an online course in spring 2008 called:
Eco-Librarians: Changing Our Communities One Step at a Time (details)
not only is the topic green themed but offering it online is green and accessible for many more people. I wonder if it will be offered again? any other library schools offer eco-librarian courses?
Thanks to Ralph Tomlinson for mentioning this to me.