IEA GHG has now embarked on a programmed of work to derive the regional costs for CO2 storage. To begin the process of developing the costs for geological storage of CO2, an initial baseline study was completed. The baseline study reviewed the major sources of anthropogenic CO2, and developed a global database of CO2 emission sources detailing quantities and locations. This data base contains details of over 14,000 large emission point sources from the power and industry sectors. Following on from the baseline study two regional studies have now commenced, one in Europe and one in North America. A third study in the series for India was agreed at the 26th ExCo meeting. The regional information developed in these studies, along with data on the costs of capture and transmission, can then be combined to allow future assessments of the comparative costs between CO2 capture and storage and other mitigation options, such as renewable fuels to be undertaken.