Energy efficiency in physics is not measured the way most people think about it. Instead of asking how much heat a process ...

Reducing energy demand was always the quickest and most direct way to weather the current global energy crisis. WWF Global Energy Efficiency Lead Richard Scotney looks at how the world responded to ...

Energy efficiency is a transformative, low-cost solution that can fast-track access to affordable and secure energy and boost economic growth. Amid soaring power demand, driven in part by air ...

The world is wasting too much energy. Inefficient vehicles and ships burn more fuel than necessary, inefficient electric motors waste energy, excess heat generated from production is not being ...

One of the biggest reasons to buy a new refrigerator is better energy efficiency compared with an older model. But how much of a difference does energy efficiency make in the long-term costs of a ...