How The World Should Invest In Energy Efficiency

One hundred and seventy billion dollars a year invested in efforts to boost energy efficiency from now until 2020 could halve the projected growth in global energy demand. What's more, these investments could also deliver up to half of the emission abatement required to cap the long-term concentration of atmospheric greenhouse gases at 450 parts per million, the level experts suggest will be needed to prevent the global mean temperature from rising by more than two degrees centigrade.