University of Cordoba

Researchers have developed a simplified, sustainable method of converting sewage sludge from wastewater treatment into high-value activated carbon that can be used in a wide range of industrial and residential applications.

Archeologists are great at determining what life looked like in ancient days, but not necessarily how it smelled. Now, though, a 2,000-year-old crystal container has shed light on the scent you might have encountered on the streets of ancient Rome.

In Nordic countries, where cold winters can keep people indoors, buildings often feature what are known as "displacement ventilation" systems. A Spanish study now suggests that such technology may also help keep patients from acquiring infections while in hospitals.