What Logan Did

Posing a massive threat to native wildlife and a river’s fragile ecosystem, didymo has now infested many of the South Island’s most iconic rivers (including the Rangitata and the Tekapo). Just a single drop of infected water or plant fragment can spread the algae - didymo kills rivers. Angered at seeing his beloved waterways decimated by this ‘rock snot’ and frustrated by the apparent lack of action by ‘the authorities’, Logan Williams (Ngāi Tahu), a 22-year-old scientist, inventor and entrepreneur from Timaru, has taken matters into his own hands.