The World Needs a Global Sewage Treaty

Ocean Sewage Alliance is advocating for a United Nations Global Sewage Treaty. With 48% of sewage entering the environment untreated, this transboundary crisis harms ocean health, economies, and communities, underscoring the need for a binding international framework for action.

Nov 17, 2025
Solutions

Disaster-ready toilets: No water? No pipes? No problem!

After wildfires made rebuilding too expensive, a Santa Cruz group championed waterless, container-based toilets. Their successful pilot proves this adaptable sanitation solution can work for disaster recovery, homeless encampments, and beyond, offering a safe alternative where traditional sewers and septic systems aren't feasible.

Nov 10, 2025
Solutions

Growing Our Wave of Impact: Welcoming Eight New Partners in 2025

Ocean Sewage Alliance is proud to welcome eight new partners in 2025! This diverse cohort—spanning AI monitoring, circular sanitation, community mobilization, and workforce development—dramatically expands our collective ability to tackle ocean sewage pollution. We are thrilled to unite these innovators, whose expertise will accelerate our mission for a cleaner, healthier ocean for all.

Nov 10, 2025
Ocean Sewage Alliance

Lessons from the chinampas: How the Aztecs recycled human nutrients for a clean, green city

On the canals of Xochimilco, the remnants of the Aztec chinampas reveal a lost model of urban sustainability. Tenochtitlan, a dazzling, waste-free city, once recycled all its organic material to feed these fertile farms — a lesson in circular ecology for cities today.

Oct 13, 2025
Conservation