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 ...

A research team from Stanford University has developed a prototype that uses solar energy to extract nutrients from human urine to create a sustainable fertilizer. They presented the system in ...

Modern sanitation systems have long treated human urine as waste, flushing away valuable nitrogen and phosphorus that are ...

Human and animal waste can replace many fertilizers if managed better and used closer to farms, improving farming systems.