While several clean energy technologies play an important role in reducing carbon dioxide emissions, none compare to energy efficiency, according to a new report by the International Energy Agency.
“Increasing energy efficiency, much of which can be achieved through low-cost options, offers the greatest potential for reducing CO2 emissions over the period to 2050,” says Energy Technology Perspectives 2010. “It should be the highest priority in the short term.”
The report offers a “Blue Map” that lays out least-cost