Grist: From his office in the Berkeley hills, Art Rosenfeld looks out on the heart of Californias Bay Area. The 87-year-old scientist keeps a pencil and a small notebook in his breast pocket, ready to jot down a quick note or make a calculation. With these simple tools he has been able to influence state and national energy policy over the years. But for now they stay tucked away as he enjoys the scenery. I get a pretty good view of San Francisco, Rosenfeld says.
While his vantage point has remained...