There is a place up here that is entirely (except for electric) ecofriendly. Recirculate and use 5000 gallon of water and heat with sun, convection. It is really neat. And they use the human fecal material in the composting. They have composting toilets. I know in Japan they (well, in 1950 when we were stationed there) used fecal material in the rice fields. We would see them with two buckets, one on each end of a pole going out to the fields.
I can see that it might seem yukky, but it IS part of biology. What is bokashi composting?