Here’s a crazy thought: plant parks, collect leaves in the fall, bioleach metals like germanium and gallium from them using chemolithotrophic bacteria (maybe after burning them and using the heat for energy, and the CO2 from burning can go to liquid cultures producing methane or something).
Here’s a crazy thought: plant parks, collect leaves in the fall, bioleach metals like germanium and gallium from them using chemolithotrophic bacteria (maybe after burning them and using the heat for energy, and the CO2 from burning can go to liquid cultures producing methane or something).