This kind of project is exactly what the world needs. The maths behind it need serious consideration though. Steem itself cannot sustain continual funding of such projects without an equivalent amount of money coming in to the eco-system. Clearly, most investors aren't looking to fund such projects or they would be already funding them via crowdfunding and elsewhere and we wouldn't even be having this conversation because Steem would be somewhat superfluous. I'm not saying I'm against funding such important transformative projects via Steem - but there has to be some kind of exchange taking place for this to work via Steem reward payouts. This is a similar challenge to the one I face at ureka.org, which is the online equivalent of your eco village idea (ureka runs steem too now, but also includes private messaging, groups and privacy in general). I need to find a way to generate 'profit' in order to justify good delegations - so if you want to discuss the possibilities for that and even to team up, then let me know. <3