CCS is seen as a tool to combat global warming. CCS involves separating the carbon in form for carbon dioxide (CO₂) from  fossil fuel before or after combustion in power plants as well as from flue gases resulting from industrial processes. The CO₂ is compressed, transported and injected to subsurface reservoirs where it can be safely stored for millenniums (a concept also referred to as Geologic Sequestration of CO₂).  

The captured CO₂ may also be utilized in a range of industrial processes. The most common way, and probably the one with largest potential, is to use the CO₂ for enhanced oil recovery (EOR) from late life (tertiary) oil fields. This is called CO₂-EOR. At the end of the oil production phase the CO₂ utilized in the process is permanently stored. The CO₂ may also be utilized in production of commodities like building materials, fuels and chemical products. In order to capture this alternative the concept of CO₂ capture, utilization and storage (CCUS) is used and incorporates also the pure storage option CCS. 

More on CCS can be found at IEAGHG, at CSLF or some of the useful links on the home page. More details on the utilization options can be found in this report.