In yesterday’s Greenwire (subscription required), reporter Paul Voosen reviews of the efforts of various firms to develop commercially competitive motor fuel from two types of single-celled photosynthetic bugs — algae and cyanobacteria.

For several years, biofuel entrepreneurs and alt-energy gurus touted oil extracted from algae as the next big thing — abundant, cheap, home grown, hi-tech, carbon neutral. In addition, unlike corn-ethanol production, growing algae in ponds or bioreactors would not inflate grain prices or divert food from hungry mouths into gasoline tanks.

But this narrative increasingly looks like hype. Voosen summarizes: [click to continue…]