In this article, a framework was created to evaluate how beneficial landfill gas projects are for sustainable development. The goal was to ensure these projects help developing countries grow sustainably while reducing greenhouse gas emissions. Researchers studied landfill practices in different countries and identified factors like technology transfer as the main benefit of these projects, with economic balance being less impactful. The new framework can help authorities make better decisions on approving and verifying project benefits, leading to more effective and beneficial landfill gas projects worldwide.