From: "Phil Payne" 

> Yup, no question that the Algae/photoplankton is the dominant factor in
> maintaining life critical factors on earth.

One of the things that worries some scientists the most.  Rising CO2
content changes pH values in the sea and kills 'em off.  We just gotta hope
these little suckers can evolve fast enough to deal with it.

(Did you mean phytoplankton?)

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