heavy metal, Tag

Fidget spinners are having a moment - practically everywhere you go someone has one twirling on a fingertip or tucked into a pocket. But environmental activist Tamara Rubin recently tested a variety of spinners for lead and...

Combining pollution cleanup, green energy, and recycling, a new project in the U.K. investigates the potential of using algae to clean up an old mine site, while producing both  biofuels and metals for electronics at...