After silicon success, clean energy

Vinod Khosla, the co-founder of the Silicon Valley success story Sun Microsystems, is betting clean green energy will be the next big money-making industry. He's investing in technology to turn waste wood into car fuel and to make solar energy powerful enough to dethrone King Coal. Khosla isn't the only entrepreneur looking at the new energy economy as the next best thing, but the presence of a business luminary like him in the field is a hopeful sign that the private sector will develop technological solutions for global warming. "My goal is to use technology to disrupt the economics of markets and produce a cheaper fuel," he told the Rocky Mountain News, "and most renewable fuels are cheaper than traditional ones like oil."