With statements like this, "In order for the phytoplankton to be a long-term sink for carbon, they somehow have to get deposited in the deep ocean, and that doesn't always happen," said Hales. "If the phytoplankton are just eaten at the surface, or don't sink to any great depth then the carbon is eventually released back into the atmosphere,"
I know I'm being overly simplistic, but great potential is there, I think.

I suppose if we run out of space to bury the huge population we could 'fertilize' the oceans with them, and then harvest the phytoplankton for food. Arrrrggh: Soylent Green!

Food for thought, if not a laugh....

~SA

Pyrolysis creates reduced carbon! ...Time for the next step in our evolutionary symbiosis with fire.