Business Green: The Energy Technologies Institute will today launch a £3.5m project to evaluate the potential of sites around the UK for storing carbon dioxide. The Department of Energy and Climate Change has made carbon capture and storage (CCS) a key part of its commitment to tackling emissions, but while it is assumed depleted North Sea oil and gas fields will represent an ideal storage site for capture CO2, estimates on the scale of those fields vary and little detailed work has been undertaken …