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The solar-powered operation dries the grounds and heats them to produce fuel for a specialized roaster. Energy from that fuel is then transferred to the roasting chamber to process the next batch of beans. The process leaves behind a carbon-rich biochar that can be returned to the soil to help grow future coffee plants. “It’s a stable form of carbon that doesn’t go back into the atmosphere,” https://www.wyomingnews.com/laramieboomerang/news/climate-coffee-brews-up-world-s-first-carbon-negative-roasting-process/article_151c4584-5042-47c9-b957-03d7c2beba00.html #ClimateChange #UpheavalClimate #pollution #ecology #environment #climate