This sounds great but when the heck can we stop worrying about whether these solutions are “low carbon emitting”. I hate to think that there is some great solution out there being held up because it emits as much carbon as oil.
because it emits as much carbon as oil.
Yet the algae consumes CO2. And the nutrient soup could be derived from some other waste stream. However I’m too optimistic, since the greenies are convinced that all technology is killing Earth Mother Goddess Gaia.