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Larry Gross steps down from AltraBiofuels, but will head up a spin-off.
Larry Gross is no longer CEO at AltraBiofuels, and so far there's no explanation for his departure. He's not the first former IT exec to leave an energy company in the past year.
Data shows that venture investing in clean tech jumped 78 percent last year to $2.9 billion, with forecast to grow to $19 billion by 2010.