‘I couldn’t breathe’: the sinister spread of France’s killer seaweed

What happened

According to The Guardian’s source item, ‘I couldn’t breathe’: the sinister spread of France’s killer seaweed, After a series of deaths on the beaches of Brittany, one bereaved family set out to prove the foul-smelling bloom was to blame When her phone rang at around 5pm on 8 September 2016, Rosy Auffray was still at work. It was one of her daughters, distressed, calling to tell her that their father, Jean-René, had not come back from his daily run. Only the family dog had returned, alone and exhausted. Rosy rushed back home. When she arrived, Rosy noticed that the dog was behaving bizarrely: she refused to walk, then collapsed under a bush. Her fur stank of rotten eggs, of overflowing sewers. Rosy knew where that smell came from: the mudflats roughly three miles from the family home in Brittany, where seaweed had been accumulating and putrefying. The soggy, decomposing seaweed stretched for miles along the shore, sometimes as much as five feet thick, killing other plants and suffocating fish and

Context

The development sits in VINI’s Global file for readers following international affairs, institutions, conflict, diplomacy, economics, and cross-border consequences. The original report is linked so readers can check the source account, follow later updates, and compare new coverage against the first published record. The source item is dated 2026-05-12T04:00:14+00:00.

What to watch

Open questions include whether primary sources issue follow-up statements, whether local or market impacts become clearer, and whether additional reporting changes the timeline or adds material context.

Source

Primary source: ‘I couldn’t breathe’: the sinister spread of France’s killer seaweed via The Guardian. VINI cites and links the source; it does not reproduce the publisher’s full article text without rights clearance.