(Wikipedia/Jim Conrad) A solid mass of floating algae, with bubbles caused by oxygen. "Algae-to-biofuels has a real chance to be successful and generate significant income for these farms," says Andy Whittington. Revenue could potentially come from algae oil for biodiesel, cellulosic ethanol from the leftover algaecake, and a livestock feed additive from the residuals.
Could Cheap Algae Oil Power our Energy Future?
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NOVEMBER 20, 2009
Cristen Conger , Live Science

A team of engineers plans to investigate whether algae commercially grown in the ocean on specialized platforms could reduce the high costs of biofuel production, potentially bringing our energy economy one step closer to shifting from fossil fuels to renewable resources.
Read the Live Science story by Cristen Conger:www.msnbc.msn.com/id/34017483/