I know there are Gristmill readers with high hopes for algae-based biofuels. They will enjoy this piece in Popular Mechanics. Here's the hope: Solix addresses these problems [algae's finicky growing habits] by containing the algae in closed "photobioreactors" -- triangular chambers made from sheets of polyethylene plastic (similar to a painter's dropcloth) -- and bubbling supplemental carbon dioxide through the system. Eventually, the source of the CO2 will be exhaust from power plants and other industrial processes, providing the added benefit of capturing a potent greenhouse gas before it reaches the atmosphere. Given the right conditions, algae can double its …
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