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Why We’re Hunting for Treasure – in Old Landfill Sites

Landfills, quite literally, are untapped gold mines.

Humans are generally getting better at dealing with their mess. In the United Kingdom, for instance, 45 percent of household waste is now recycled – yet that still means more than 12 million tons are buried in the ground every year. Burying that rubbish isn’t cheap, and neither is keeping it in the ground once it’s there. […]