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Re: CO2 sequestration



I recall a very interesting article (probably in the NY Times) that
may have been a feasable method. There are vast stretches of ocean
with lower concentrations of algae. Someone tried to fertilize them
with chemicals, and it worked. There was a huge algae bloom which
sequestered a large amount of carbon. Now of course the carbon was
eventually recycled, but this means the CO2 can be captured in algae,
but it remains to be seen if this can be permanently done. Is it
possible to then capture the algae or might it sink to the bottom?
There are many unknowns, but at the time the article proposed this as
a possible solution.

Perhaps someone else has seen this idea and can shed more light on it.

John M. Clement
Houston, TX

If anybody knows of a serious feasible proposal, please let
us know. A pilot plant, perhaps?

Note that the envelope of economic feasibility is capped by
the cost of things like closed-carbon-cycle fuels (i.e. bio
fuels, as opposed to fossil-carbon fuels) and non-carbon
power sources (e.g. solar photovoltaic).