Globally, human excreta are a huge untapped source of nutrients. Now, a new perspective paper makes the case that biochar could help to unlock it. The PNAS paper shows that human waste contains over ...
These are not abstract questions. In the coming weeks, the EU will decide when plastic waste stops being waste and starts ...
"Intense heat and sudden flames." Experts issue warning about common waste items that can spark fires: 'It can spread in ...