Bacteria can 'fertilize' copper-polluted soil

When miners abandoned Michigan's Copper Country, they left a lot of the red metal behind, and not in a good way. Waste from the mining operations still contains a high fraction of copper, so high that almost nothing can grow on it -- and hasn't for decades, leaving behind moonscape expanses that can stretch for acres. Researchers may have now discovered how to make plants grow in the mine-waste desert and soak up some copper while they are at it.

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