These systems, properly designed, create the materials needed to build new copies of themselves. They're (potentially) self-replicating. A bit of labor and a lot of intelligence and we can convert deserts into gardens and food forests. And, given time, they will alter the (micro- then macro-) climate.
(I feel like we have all the technology we need to solve our problems now, but we are distracted and incoherent.)
[1] https://greeningthedesertproject.org/about-us/
https://greeningthedesertproject.org/celebrating-10-years-at...
> The Greening the Desert Project started with the purchase of land about ten years ago, and it expanded slowly until that mounted into exponential growth. Things started at the top, literally, with a large water tank that feeds a shower/toilet block just downhill. The toilets are dry composting, supplying fertilizer for plants on site, and the greywater from the showers and sinks goes to a nearby reed bed. The reed bed, still high in the landscape, is then able to send gravity-fed irrigation to many trees throughout the site. It’s all used onsite for beneficial biological cleaning.
> The food forest with stone walls and earth-backed swales moves through the landscape to rabbit and chicken houses, which combine manures in a system that creates a cubic meter of compost every five weeks. That goes to the main crop garden, a shade-covered kitchen garden. The surplus fertilizer (compost) goes to food forest trees and the nursery. The runoff from the nursery goes through to the kitchen garden. The accommodation building has an office, a classroom, and eight bedrooms. It’s two stories high and made with earth brick and straw bale. The roof has a beautiful garden made up of wicking beds.