----- Original Message ----- From: "Robin van Spaandonk"

...which works out to about 10-20% of US consumption (if memory serves correctly)

The Amazon (Nile, Mississippi etc) delta areas are surely much more fertile for algae - at least potentially (may need seeding) - but in any of these situations - how does one efficiently "strain" or filter that much water to remove the algae? Perhaps it is takes more energy to filter out the algae than you get from the process.

Jones



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