Here's something which I think is a useful resource for some involved in the Psychology of Change. Put simply it studies the link between ecology and psychology. Here's an article looking at Ecopsychology's "eight principles" http://www.taichisage.com/content/ecopsych8.htm
Also here's an article I wrote about Ecopsychology a while ago: http://thegroveofquotes.wordpress.com/ecopsychology
There's plenty of other resources, books and Internet, just google "ecopsychology" and you're bound to find more info.