The Global Methane Hub and Delterra Extend Partnership to Accelerate Organics Diversion and Methane Reduction in the Global South

New phase of collaboration strengthens government-led systems to deliver sustained climate impact and scalable waste solutions    

Washington, D.C., July 1, 2026 — The Global Methane Hub (GMH) and Delterra have announced the extension of their collaboration to accelerate methane reduction from organic waste through strengthened management systems in Argentina and Indonesia. Building on the success of previous joint work, the new initiative will focus on supporting long-term, government-led systems transformation.

Through an 18-month initiative, Delterra will further strengthen organics diversion systems in Buenos Aires, Argentina and Badung Regency, Bali, Indonesia with the goal of delivering near-term methane reductions while creating durable pathways for future scale. Organic waste is one of the largest sources of methane emissions globally, and reducing these emissions represents one of the fastest opportunities to slow climate change.

“Reducing methane from waste requires solutions that can be sustained and scaled over time. This partnership reflects a shared commitment between the Global Methane Hub, Delterra and local governments to accelerate scalable and evidence-based solutions for methane reduction in dense urban environments,” said Carolina Urmeneta, Waste & Circular Economy Program Director at the Global Methane Hub. “This initiative  demonstrates how effective collaboration can help governments build the systems needed to deliver long-term climate impact.”

“Building on the progress achieved through our previous work, this next phase focuses on embedding organics management within public systems so that impact can continue and grow well beyond individual projects,” said Shannon Bouton, CEO of Delterra. “This initiative builds on Delterra’s hands-on experience working with local governments and communities to co-design and implement practical, scalable solutions. It is also designed to generate insights and frameworks that can help cities and regions around the world accelerate organics diversion and climate action.” 

The Project in Argentina

The initiative, titled “Strengthening Buenos Aires’ Organics System for Sustained Methane Reductions” will help consolidate and optimize the city’s existing source-separated organics collection system while addressing operational, financial, and regulatory challenges associated with future expansion.

Over the past several years, the City of Buenos Aires has made significant progress in implementing source-separated organics collection. Following the pilot project implemente last year, participation and collection volumes continue to increase, and the system is entering a critical transition phase. The project will support the City in strengthening the performance of its current public organics collection routes by improving material quality, reducing operational variability, and enhancing data availability and traceability. The initiative will also reinforce digital monitoring and performance management systems to enable more data-driven operational and policy decisions.

In parallel, Delterra will test behavior change and engagement strategies for additional generator profiles, including future opportunities for expansion.

To prepare the system for future scale, the initiative will assess pathways for private sector participation under defined technical and quality standards, evaluate treatment and financing options through comparative economic and financial analyses, and explore complementary or decentralized treatment solutions where feasible.

➡️ Get the Buenos Aires Case Study here.

The Project in Indonesia

In Bali, the initiative in Badung Regency focuses on strengthening the long-term foundation for organics management through a multi-year scale-up roadmap, institutional capacity building, and operational improvements. Delterra will co-develop a 2026–2028 roadmap aligned with the region’s medium-term development plan (RPJMD 2027–2032), based on village-level readiness assessments and including implementation sequencing, targets, responsibilities and key constraints.

The program also includes training-of-trainers for local government officials to ensure effective implementation of the roadmap, along with hands-on coaching and operational support for the PDU Mengwitani facility. This work aims to strengthen day-to-day management systems, improve worker training, and establish standardized procedures, performance monitoring, and data tracking to support more efficient and independent operations.

A final consolidated report will document methane reduction potential to support decision-making by Badung Regency, Bali provincial authorities and other stakeholders, ensuring accountability and enabling future scaling and replication.

➡️ Explore more about the project here.

About The Global Methane Hub

The Global Methane Hub organizes and unites governments, industry leaders, scientists, and nonprofit organizations across the globe to minimize methane pollution through technology and common-sense public policies and regulations. We have raised over $500 million in pooled funds from more than 20 of the largest climate philanthropies to accelerate methane mitigation across the globe.

About Delterra

Delterra is a global environmental nonprofit working to transform waste systems and advance circular economy solutions across the waste value chain. Delterra partners with governments, communities, and private companies to bridge global ambitions with local action, making material systems and behaviors more circular.

🎬 Watch how collaboration is turning ideas into impact

Reuters spotlights the City of Buenos Aires case study, showcasing how innovative organic waste management strategies are helping reduce methane emissions and build a more sustainable future.

Media Contact:

Delterra
Mariana Mangiarotti
Email: contactus@delterra.org
Website: Home – Delterra