Wow, what an amazing journey. I feel as though I have so many kinds of orgs I'd love to connect you with. Other than studying a lot about sustainable development in grad school, I ended up working a bit with Engineers Without Borders. In Israel I met a guy who runs a permacukture and eco building program at Kibbutz Lotan in the south. I got to stay in one of their mud dwellings, and fell in love with the whole thing. Recognizing that idealism and imagination don't always square up with scientific facts is a good thing. Lots of people out there trying 'there own thing' without understanding the implications or even hazardous consequences. Anyway, looking forward to reading more from you.