Environmental
The ecology of eden (Eisenberg, E)
Seeing Green: The politics of ecology explained (Porritt, J)
A Sand County Almanac. (Leopold, A).
Natural Capitalism: creating 
the next industrial revolution. (Hawken, P., Lovins, A., Lovins, H)
Green Political Thought (Dobson, A)
Toward a Transpersonal Ecology: developing new foundations for environmentalism (Fox, W.)
Rising Tides (Rory Spowers)
