Energy efficiency is widely recognised as the most cost-effective and readily available means to address numerous energy-related issues, including energy security, the social and economic impacts of high energy prices, and concerns about climate change. At the same time, energy efficiency...

This publication examines how energy efficiency and other factors such as economic structure, income, lifestyle, prices, and fuel mix have shaped developments of energy use and CO2 emissions in IEA countries since the IEA was founded 30 years ago. The study presents some challenging findings,...