Quote: from Killarny at 12:45 am on Aug. 28, 2008
Quote: from The Samsoniteman at 12:26 pm on Aug. 27, 2008
Unless the combustion of the biofuel is 100% efficient the amount of carbon being released into the atmosphere would be less than the carbon withdrawn from the atmosphere by the algae. 
But still far less than the carbon dioxide released by burning fossil fuels

Indeed. Even if it replaced all the carbon back into the atmosphere, so what? No net gain, no problem. The trouble starts when you start unlocking carbon sinks with no regard to the effects on the environment.
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