Earlier this month, an 18-year-old oyster farmer died while in the Bay of Morlaix in Brittany in what environmentalists believe was hydrogen sulphide poisoning. However, local campaign group Halte aux Marée Vertes claimed he had actually died of a toxic gas released by decomposing sea lettuce. (Image: AFP/Getty Images)In 2011, 36 wild boar died on a beach near Saint-Brieuc. Six years later a man collapsed and died while running along the same stretch. Workmen tasked with cleaning up the algae are also known to have become extremely ill.

Source: Daily Mirror July 17, 2019 16:52 UTC