Feb. 14—Farmers across Washington already spread thousands of tons of fertilizer from human waste on their crops each year, but there’s a major blind spot when it comes to potential contaminants.

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 ...

Sporting gloves, masks, goggles and baggy cleanroom bunny suits, Juan Delgado and Luis Martinez get to work on the southern edge of Downtown in a condo parking lot. They aren’t mopping up a chemical ...

Researchers recently unveiled proof that Romans used a surprising ingredient in their medical treatments — and it's far from sanitary. The research focuses on a vessel that was unearthed in Pergamon, ...