The prototype Globe/Hedron is a bamboo greenhouse designed to organically grow fish and vegetables on top of generic flat roofs. It uses aquaponic farming techniques so the fish's water nourishes the plants and plants clean the water for the fish.
Litter isn't just a problem for terra firma, it's a very real problem in space as well. The effort to clean up space junk might take a variety of different methods, and here's a look at some of those concepts being considered.
Artist/inventor Michael Jantzen's new concept for a Solar Winds Desert Power Plant envisions a large public gathering place, inspired by the shape of a flowering plant, to be located in a public park in a hot, dry climate.