Carbon (dioxide) capture and storage (CCS) has been proposed as a potential solution to reduce Australia's greenhouse gas emissions. Greenhouse gases cause a warming of the Earth's atmosphere. The most abundant greenhouse gas is carbon dioxide (CO2). The current concentration of CO2 in the atmospheric far exceeds the natural range over the last 650,000 years. The main source of increased CO2 concentrations is human-induced fossil fuel emissions. To meet the United Nations Framework Convention on Climate Change (UNFCCC) goal of stabilisation of anthropogenic greenhouse gas emissions, to which Australia is signatory, deep reductions in greenhouse gas emissions are required. There is growing political and industrial support for the technology of carbon capture and storage (CCS) in the belief that it can achieve the deep cuts required in CO2 emissions. This paper examines the current and future capability of CCS to reduce Australia's greenhouse gas emissions.