A large volume of carbon dioxide emissions from burning fossil fuels are heating up our planet. Carbon capture and storage (CCS) has been identified as a feasible technology to reduce emissions whilst permitting the continued use of fossil fuels. Carbon dioxide can be captured from point sources and injected into geological formations. Injected gas must remain isolated from the atmosphere for tens of thousands of years or longer, hence the need to predict long-term performance of geological storage. Natural CO2-rich sites provide excellent analogues on such a timescale. This book examines...