Should energy efficiency be pursued?

Yes, absolutely. Unlocking the full potential of efficiency is the difference between a richer, more efficient world, and a poorer, less efficient world. Broadly speaking, when car engines, computers, and light bulbs were less efficient, they used less absolute energy. As they became more efficient and delivered services faster, we produced and used more of them, leading to greater energy use overall. Improving the energy efficiency of a technology or service allows for wider spread diffusion and attendant increases in economic growth, human development, resilient infrastructure, and a host of other benefits. Improving energy efficiency has a consistent tendency to spur technological diffusion, economic growth, and the freeing up of energy resources to be used on novel, productive energy services.