Veteran writer and editor Brian Dumaine examines the efforts of entrepreneurs, investors, corporate mavericks and other innovators whose work Dumaine says will make green technology the Silicon Valley of the 21st century — and will save the planet in the process.

Dumaine is the editorial director of Fortune Small Business. Before that he was the international editor and assistant managing editor of Fortune magazine. During his 28-year career at Time Inc., he has written or edited hundreds of articles and devoted much of his editorial energies to environmental issues and the rapid rise of the green movement and its effect on capital markets, corporations and executive thinking.