Carbon Capture and Sequestration (CCS) is a way of grabbing and burying carbon so that total CO2 doesn't rise when we burn, say, coal. The US GAO -- an excellent organization AND part of government (!) -- has issued an overview that points out the numerous problems with CCS.
I realize that CCS is just another form of geo-engineering -- and similarly doomed to
Bottom Line: The way to stop global warming is to stop doing the stuff causing global warming. Damn.