Twelve years ago a small patch of a strange gigantic seaweed appeared off the coast of Monaco.
Despite warnings from a marine biologist about its high toxicity, the seaweed was ignored by local authorities, and has now mutated into a phenomenon known as the "killer algae" which is choking all indigenous life. This documentary examines how a supposedly harmless plant has become a potential threat to global marine life.
See Choice.
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Killer algae websites - Webwatch: page 42