Community

The Power of Collective Action: How a Neighborhood Transformed Its River

A community-led initiative in Mandaluyong is restoring the Pasig River and rebuilding community spirit

By Marian Santos · 6 min read · Updated August 10, 2026 · National Capital Region

The Power of Collective Action: How a Neighborhood Transformed Its River

The Pasig River, once a vibrant waterway that served as a lifeline for Metro Manila, had become one of the most polluted rivers in the world. Its banks were lined with informal settlements, its waters choked with waste, and its health a reminder of the challenges facing the nation.

But a community-based initiative in the Mandaluyong area is showing that the river can be restored. Residents along a stretch of the river have organized a cleanup and rehabilitation program that has transformed a polluted waterway into a community asset. The initiative, driven by a coalition of residents, NGOs, and local government, is a powerful example of what can be achieved when communities come together.

"It was a daunting challenge," admits Dr. Mylene Abad, head of the River Restoration Project. "The pollution was overwhelming, the community was skeptical, and we had very limited resources. But we started small, with cleanup events and community meetings. It took time, but we've slowly built a movement."

The project has evolved from simple cleanups to a comprehensive river rehabilitation effort. The community has established wastewater treatment systems to reduce pollution. They have planted trees and mangroves along the riverbanks. They have created community gardens and parks that provide green space.

"People are taking ownership of their river," Dr. Abad says. "They see it as their responsibility, not just the government's. They are protecting it, caring for it, and celebrating it."

Marian Santos

Written by Marian Santos · Senior Investigative Reporter

Investigative journalist with 12 years of experience covering environmental justice in Southeast Asia. Winner of the 2023 Pulitzer Prize for International Reporting. Marian has dedicated her career to exposing environmental injustices and amplifying the voices of communities on the frontlines of climate change.

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