Fig. 1. (1) An overview of carbon capture and storage, from obtaining fossil fuels including coal by mining. (2) The fuel is used to make electricity
in a power plant; (3) then transported (in this case by pipeline) and (4) injected into (5) underground storage. Note that the CO2 will normally
be injected to depths of at least 800m below the ground or seabed. Fig. 2 gives a better idea of typical storage depths. (Image courtesy of Scottish
Carbon Capture and Storage (SCCS),