Silicon Valley earned its name and first great fortune as the cradle of the computer age. Then it built a launching pad for the Internet age. Now the valley has assumed a leading role in the global competition to develop renewable energy and other clean, green technologies.
Cleantech is poised to be the valley's third great wave of innovation — not just the next big thing, but perhaps the biggest thing ever. Confronting the peril of greenhouse gases and climate change happens to be a multi-trillion-dollar business opportunity.