If you have unwanted gold, silver, or jewelry lying around your house, you can sell it to a recycler who will give you cash for your items — and you can feel good about doing it. Gold and diamond ...

Recycled gold is having a moment. The London Bullion Market Association (LBMA), the world’s largest gold trading market, reports that more than half of its gold comes from recycled sources. Brands ...

Chalmers University researchers develop a sustainable method for gold recycling using biodiesel. The method effectively extracts pure gold from mixed metals and is applicable to other socially ...

Researchers have developed an environmentally friendly method for recycling and purifying metals. Using gold earrings from a pawnshop in Gothenburg and biodiesel from the nearest filling station, the ...