The report also shows estimated abatement costs versus capital intensity for a number of sectors - see the figure below. This way of looking at the data reveals that initially it may be cheaper to invest in technologies capable of reducing the emissions of carbon dioxide from a power plant than say, construct new buildings that are energy efficient. However over the long term, the life cycle cost of a new building will be substantially lower than that of a technology such as carbon capture and storage because of the energy savings that can be achieved. This is likely to complicate the decision process for policy makers who in seeking to prioritise low carbon options on the basis of their cost-effectiveness will be constrained by available budgets. The creation of an effective market where the future price to be paid for GHG emissions could be anticipated with certainty (though this is something of an oxymoron) would obviously assist the decision process.