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 ...

Biochar might sound like a fine dining special, but it's actually a promising solution to help farmers meet their fertilizer needs. The substance, a stable form of carbon similar to charcoal, is made ...

Researchers have developed engineered yeast that converts human waste into medical-grade material for tooth and bone implants, reported Interesting Engineering. The development tackles two challenges ...