Let's not forget the massive CO2 generated by mining, processing, and transporting crushed rock.
I used to work on SAG (semiautonomous grind) mills for fine grind on copper-bearing ore. Grinding rock is incredibly energy inefficient. I would suspect this entire process is carbon-positive despite the atmospheric capture.
It seems we will do anything to avoid the obvious - we need to reduce energy use and transition to green generation.
I used to work on SAG (semiautonomous grind) mills for fine grind on copper-bearing ore. Grinding rock is incredibly energy inefficient. I would suspect this entire process is carbon-positive despite the atmospheric capture.
It seems we will do anything to avoid the obvious - we need to reduce energy use and transition to green generation.