Smart thermostats may provide up to 10% savings in residential thermal energy use without loss of comfort, yet their diffusion has typically been slow. To better understand adoption of these devices, we conducted an online survey with approximately 5,500 respondents from eight European countries...

In the last 30 years, specific primary energy use in the German steel industry has decreased by about 30%. This decrease can be attributed to both structural changes in the steel industry (from basic oxygen steel to electric arc furnace steel) and to the improved energy efficiency of new...