Bron Taylor is giving a lecture on my campus tomorrow. I'm reading some excerpts online right now from his book, the Encyclopedia of Religion and Nature, and it seems quite interesting.

The website is here: http://www.religionandnature.com. There's sample articles to read, as well as the introduction (which is dry and not as interesting as the articles, IMO). All are in PDF format.

I'll post my notes from the lecture here sometime tomorrow evening. They should be good thought-provokers, if what I'm reading now is any indication.