Improving the energy efficiency of everything from the lights in people’s homes to the cars they drive is a key component of global climate action. Such efficiency gains, which are included in many influential computer models, can lower energy use and, therefore, make it easier to decarbonise the global economy. At the same time, they can improve quality of life, boost productivity, increase competitiveness and contribute to growing the economy. However, counterintuitively, gains in energy efficiency can also encourage behavioural change towards more energy use, meaning some of the anticipated energy savings may be “taken back”. This is known as the “rebound effect”.
Carbon Brief 2nd March 2021 read more »