Ms. Liu, CCS, if you look at it from a holistic point of view.... The Society of Petroleum Engineers put out a paper in 2008. They disclosed in that paper that CCS is not a viable economical solution for reducing greenhouse gas emissions, the reason being that total volume of sequestered CO2 that would be retained in a formation would be approximately 1% of the total volume of fluids that would have been recovered through EOR.
Presently we're using CO2 injection for enhanced oil recovery. It's a benefit. By subsidizing CO2 sequestration, you're subsidizing the production of an oil company.
Does the taxpayer benefit with reduced costs at the pump? I don't think so. That's an issue.