#Making coal from food waste, garden cuttings – and even human sewage
“#Making coal from food waste, garden cuttings – and even human sewage” Millions of tonnes of organic waste are currently dumped in landfill, where it decomposes and gives off greenhouse gases. Credit: Pixabay/Ben_Kerckx, licenced under Pixabay licence Food waste, garden cuttings, manure, and even human sewage can be turned into solid biocoal for energy generation,…