1.1 CCS and climate change

1.1.1 What is CCS?

The set of technologies that encompasses CCS include those that capture, transport and safely store anthropogenic carbon dioxide (CO2) deep underground.

1.1.2 Is CCS optional to mitigate CO2 emissions to atmosphere to avoid dangerous climate change?

No. Development and deployment of CCS must occur to reduce CO2 emissions to the atmosphere as part of a portfolio of solutions to combat climate change. As estimated by the International Energy Agency (IEA, 2008) a variety of technologies and actions will be required to reduce anthropogenic CO2 emissions by 50 percent by 2050, including CCS. The estimated contribution of various CO2 reduction methods is shown in Figure 1-1. Approximately 19 percent of emissions reductions could be contributed by CCS.

Development and deployment of CCS must occur to avoid dangerous climate change

Figure 1-1 Contribution of technology segments to reduce CO2 emissions by 50 percent by 2050 Source: IEA Energy Technology Perspective, 2008