Art Rosenfeld, 'godfather' of energy efficiency, dies at 90

(AP) — Physicist Arthur Rosenfeld, who spearheaded breakthroughs in energy efficiency for lighting, refrigerators, televisions and other electronics while working at the Lawrence Berkeley National Laboratory, has died.

A particle physicist, he moved to Berkeley in the 1950s to work in the particle physics group of Luis Alvarez, who was awarded the Nobel Prize in physics in 1968.

After 20 minutes of uncovering light switches (and saving 100 gallons for the weekend), I decided that UC Berkeley and its Radiation Laboratory should do something about conservation," he wrote in a 1999 autobiography of his career, "The Art of Energy Efficiency.