How to Jump-Start the Clean-Tech Economy

by Mark W. Johnson and Josh Suskewicz

WHAT WILL IT TAKE to transition from a fossil-fuel economy to a “clean-tech” economy powered by renewable energy? Silicon Valley is teeming with new projects in this field, and bold policy proposals are flying around inside the Beltway. The Obama administration has pledged more than $100 billion for sustainable technologies; China plans to spend $200 billion, and the G-20 industrialized nations some $400 billion. Venture capitalists around the world have pumped in excess of $20 billion into clean-tech companies since 2005.

So far, the bulk of investment has been in companies using conventional business models in an effort to fit clean technologies into existing systems. ...

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