Bubbles of Hope: Cleaning Our Waterways

Rivers serve as the primary pathways for millions of tonnes of plastic entering the world's oceans annually. Despite increasing efforts in clean-ups, the rising tide of plastic production, projected to triple by 2030, necessitates more proactive solutions. Less than 10% of plastic is recycled globally, leading to significant waterway pollution.

The Great Bubble Barrier employs a unique approach by installing perforated tubes across riverbeds that generate a curtain of bubbles. This bubble screen, positioned diagonally, guides floating debris and submerged materials to a collection point on the riverbank. This method effectively captures approximately 86% of surface plastic without impeding fish migration or ship traffic.

Currently operating in the Netherlands and Portugal, the company aims for global expansion, with a focus on Southeast Asia's most polluted rivers. Successful implementation requires a multi-stakeholder approach, involving governments, local waste managers, and communities to ensure proper waste collection systems are in place.

Recognition, such as being a finalist for the Earthshot Prize, has significantly boosted the company's visibility and accelerated its international outreach. The gathered data from these barriers also serves to inform policy-making aimed at preventing plastic pollution at its source.