Watergy is a bionic concept, immitating the biosphere within an enclosure, using wind, rain and related energy dissipation. It allows 85% recycling of irrigation water, while accumulation of CO2 leads to higher rates of photosynthesis. Further applications are plant protection (no pesticides), processing of greywater, desalination and heat supply.
Watergy
Watergy
Link: http://dw.de/popups