The GEF continues to perform strongly, with more than 80 percent of completed projects rated in the satisfactory range for outcomes and for quality of implementation and execution. These results reflect a mature institution capable of delivering consistent project-level success. However, impact assessments paint a less encouraging picture: only 59 percent of projects demonstrated broader adoption, and sustainability was rated likely in nearly two-thirds of projects. These findings are broadly consistent with those reported by other international organizations. Challenges with broader adoption and sustainability, compounded by underinvestment in environmental public goods, create a disconnect: despite strong project-level performance, systemic impact remains limited. To translate high project success rates into durable environmental gains at scale, the GEF must sharpen its catalytic role—mobilizing cofinancing, strengthening policy coherence, crowding in partners for delivery and learning, and fostering innovation that can be replicated and scaled. Greater emphasis is also needed on sustainability—ensuring the environmental, financial, and institutional viability of achievements beyond the life of GEF support.
Sources: GEF Portal and GEF IEO Annual Performance Report (APR) 2026 data set, which includes completed projects for which terminal evaluations were independently validated through June 2025.
Note: Data exclude parent projects, projects with less than $0.5 million of GEF financing, enabling activities with less than $2 million of GEF financing, and projects from the Small Grants Programme. Closed projects refer to all projects closed as of June 30, 2025. The GEF IEO accepts validated ratings from some Agencies; however, their validation cycles may not align with the GEF IEO’s reporting cycle, which can lead to some projects with available terminal evaluations lacking validated ratings within the same reporting period; thus, validated ratings here are from the APR data set only.