New technologies could refine copper the world needs — without dirty smelting https://www.tucsonsentinel.com/nationworld/report/120524_copper_smelting/new-technologies-could-refine-copper-world-needs-without-dirty-smelting/
A handful of startups have announced partnerships with major mining firms and scooped up tens of millions of dollars of investment, and all claim their technology can help meet humanity’s surging appetite for copper, while driving down the industry’s environmental footprint.
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