Dozens of biotech companies were hot on the idea, but skeptics -- and a new report produced by UC Berkeley -- say that the technology won't work on a large scale.
Marshall writes, "The report estimates that with current technology, a 250-acre algae biofuels plant would need to sell its oil at $332 a barrel to break even-a price that would make even OPEC green with envy (pun intended)."
The technology isn't a complete waste, says Marshall, because it can be used for bioremediation.
