Lawrence Berkeley Nat'l Lab – Roy Kaltschmidt, photographer

Steve Chu, energy secretary in the Obama administration, returned to Berkeley today to speak to his former colleagues at the Lawrence Berkeley National Lab (LBL). If you’re reading Berkeleyside before the 10:30 finish to Chu’s presentation, you can watch a live webcast.

Chu won the Nobel prize for physics in 1997 for his work on trapping atoms with laser light. When he became director of LBL, he turned much of his attention to energy and climate issues, which are at the core of his work at the Department of Energy.

Lance Knobel (Berkeleyside co-founder) has been a journalist for nearly 40 years. Much of his career was in business journalism. He was editor-in-chief of both Management Today, the leading business magazine...