Drainage nets draw global attention

Australian city of Kwinana keeps waste out of water with huge 'socks'

It has been described as the "simple pollution solution", a sock-like net that fits over a stormwater drain outlet to collect rubbish before it enters a waterway.

For years, the Australian city of Kwinana, just south of Perth in Western Australia, had been battling with waste such as plastic containers, bottles, paper and vegetation discharged into the city's waterways by stormwater drains.