Throw your old organic rubbish into the compost heap. Worms will crawl through it, chewing it up, excreting, mixing the chemicals, breaking them down into FinerGrained, more useful stuff.
The compost heap manufactures nutrients on which new plants grow. It generates heat from the energy liberated by all that churning and mixing. It provides a home to many species ...
See also GardenImagologies
Last night I was excited to discover Compost is pattern 178 in ChristopherAlexander's "A PatternLanguage". And it's all about decentralized toilets as an an alternative to a wasteful centralized sewage system. Which gives me an excuse to link this node to SepticTanks :-) and CategoryDecentralizedLiving
See also :