I am a PhD student in a transpersonal clinical psychology program.  I
am hoping to identify a dissertation topic in ecopsychology.  I'm not
sure what exact topic would be most growth-inspiring for the field of
ecopsychology, as well as applicable to the field of psychotherapy.  I
am also looking for the best resources for developing this
dissertation

Here is a resource.  The groups that are promoting this new way of
thinking about the environment have found a way of designing an
environmentally friendly future that is amazing and must be studied
awhile to fully appreciate what the movement is capable of doing.

      The book is      Cradle to Cradle: Remaking the Way We Make Things

      The web site is   http://www.mbdc.com/