The European Union has binding targets for carbon dioxide reductions and renewable energy. Why does energy efficiency not have the same status?

The European Union has three energy-related targets for 2020. Each is based upon an emblematic 20 per cent. According to Commission president Jose Manuel Barroso, these are: to cut carbon dioxide emissions by 20 per cent; to boost the proportion of renewable energy to 20 per cent; and to improve energy efficiency by 20 per cent.