I believe that by working with and respecting natural processes and cycles new technologies can be developed for the common good. Some of these technologies exist already and some are being developed now. We can talk about anything from permaculture to waste disposal. I will try to stimulate discussion by bringing in what I am aware of and I invite you to do the same. I hope this will be a valuable council among many.
Here is a video of low tech methods being applied within an urban environment to grow food and produce energy with great success. Very promising and encouraging.