Filipino volunteers and workers waded through a rubbish-filled river in Manila to collect waste washed in during heavy tropical storms [1], [2].
These efforts are critical for one of the world's most polluted waterways, where accumulated debris blocks drainage and threatens public health. The cleanup aims to restore a healthier waterway for the urban population of Manila [1], [2].
The surge of waste followed a downpour that lasted nine days [1]. This period of intense weather was driven by tropical storms that dumped an extraordinary volume of water across the region [1]. In some areas, the rainfall was equivalent to more than a month's worth of rain [1].
Local volunteers, often referred to as "river warriors," worked alongside city workers to clear the Pasig River area [1], [2]. The volunteers waded directly into the water to pull out plastic and other debris that had blanketed the surface [1].
Heavy rain in Manila frequently pushes land-based waste into the river system, creating floating barriers of trash. This recurring issue complicates flood management in the city, especially during the storm season when river capacity is reduced by pollution [1], [2].
The cleanup operation focused on removing the immediate tide of rubbish to prevent further stagnation and pollution in the waterway [1]. While the "river warriors" provide essential labor, the scale of the waste highlights the ongoing struggle to manage urban refuse in the Philippines [2].
“Filipino volunteers, often referred to as 'river warriors,' worked alongside city workers to clear the Pasig River area.”
The reliance on volunteer 'river warriors' to clear Manila's waterways underscores a systemic gap in urban waste management and infrastructure. When extreme weather events—such as a month's worth of rain falling in nine days—occur, the city's drainage systems are easily overwhelmed by plastic pollution, increasing the risk of prolonged flooding and waterborne diseases in densely populated areas.

