Film star’s guerrilla ‘glow‑moss’ release lights up German rivers, scientists issue emergency warning
An impromptu urban art stunt by a well‑known actor has led to an unprecedented spread of engineered bioluminescent moss across riverbanks and parks in northern Germany. Researchers say the organism has altered local night ecology and is mutating by picking up environmental genes, prompting emergency sampling and a temporary ban on open‑air releases.