It's not a direct route, but two researchers have figured out a way to take waste plastic, feed it to special bacteria, and then end up with nutritious protein powder. We'll explain. Plus: a guy has been growing plants inside a big glass bottle for decades - and because the bottle is sealed, they basically water themselves over and over!
€1 Million Prize for Plastics-to-Protein Research Awarded to Steve Techtmann, Ting Lu (Michigan Technological University)
Thriving since 1960, my garden in a bottle: Seedling sealed in its own ecosystem and watered just once in 53 years (Daily Mail)