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Green Bubble or Green Opportunity?

Editor-in-Chief Amy Cosper talks about how going green can be a game-changer for all sectors.

This story appears in the April 2010 issue of Entrepreneur. Subscribe »

The amount of money flowing into alternative energy is mind-blowing. Last year, VCs dropped $4.9 billion into the sector. Add to that the $79 billion allocated by the federal government's stimulus plan and . well, you get the picture.

The problem is that the sector is flush with greenbacks and tax credits but shy on profit and margin. Whether it's solar, wind, biofuel or geothermal , the question looms: Is the business of a ?

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