Algal fuel currently sells in the range of $4 to $5 a gallon, or $150 to $200 a barrel, according to Sayre. But once industrial scale production facilities are running at full capacity, and emerging technologies make algae more efficient, the price could drop to $2 a gallon, he said.
One way or another, the problem looks like it can be solved. It is just a matter of what way works the best.
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