By Tim McDonnell, SemaforOne of the biggest carbon removal facilities in the US is closing in on a final investment decision to triple its capacity.Graphyte — backed by Bill Gates’ Breakthrough Energy Ventures — takes plant waste from paper and timber mills, farms, and other facilities and converts it into solid bricks that can be buried underground, thereby taking the carbon that the plant photosynthesized while alive. The company opened its first facility in Arkansas last year, and ha...
