> Biodiesel isn't 'neutral'. If memory serves, its C02 output is less
> than petrol but much greater than zero. The real hope however, is
> that a fully realized, globally distributed algae fuel source system
> would work out to be net neutral, or pretty damn close, because algae
> absorbs carbon at a robust rate.
That's part of what I meant by neutral -- that whatever the biofuel releases, the algae take out of the system up front.
Part of the problem with ethanol, as I understand it, is the energy required to process and distill it, and resultant CO2 production. Is this less of an issue with algae?
-- Andy