EMISSION REDUCTIONS AS ECONOMIC TOOL Industrial CO2 Vent-Stack Capture, Utilization and Sequestration (CCUS) At one time, four natural gas processing plants in West Texas were venting over 100 million cubic feet of CO2 per day (2 million tonnes per year) into the atmosphere. In the mid-1970s, the industrial CO2 was gathered by a Pennzoil pipeline. […]