Industry, governments and research institutions around the world recognize that carbon dioxide capture and storage (CCS) is a technically viable option for significantly reducing the release of greenhouse gas (GHG) emissions to the atmosphere. By definition, CCS involves the capture and transport of carbon dioxide (CO2) from industrial sources to an appropriate site for secure and long-term storage (see the Glossary for a detailed definition of CCS and other terms used in the roadmap). Storage options include injecting CO2 into geological formations or oceans, or converting it to solid carbonates using mineral fixation, but the most promising option today is geological storage. Recognition of the role CCS can play in moving Canada closer to a low-emissions energy future has led to the writing of this guidance document on CCS technology in Canada: Canada's Carbon Dioxide Capture and Storage Technology Roadmap.