Diego Mesa Puyo Assumes Role as CEO and Chairperson of the Global Environment Facility Amidst Historic Environmental Commitments
Washington, D.C., October 1, 2026 — Diego Mesa Puyo, a distinguished Colombian-Canadian economist renowned for his expertise in sustainable development, has officially taken on the responsibilities of CEO and Chairperson of the Global Environment Facility (GEF). This development comes at a pivotal moment in the global environmental arena as the GEF embarks on its 2026-2030 funding cycle, tasked with the impressive goal of managing over .3 billion in initial pledges tailored to bolster initiatives aimed at safeguarding the global environment.
Mesa Puyo’s leadership will guide the GEF during an unprecedented time, where the urgency to meet the Sustainable Development Goals (SDGs) and broader environmental commitments is paramount. The newly appointed chair emphasized this responsibility, stating, “We have a global responsibility to protect nature and the environment while propelling sustainable economic growth. Achieving the 2030 goals requires bringing development and environmental action together.” His vision reflects a holistic approach where nature and economic resilience are seen as intertwined, reinforcing the notion that investment in ecological integrity is also an investment in human prosperity.
Notably, the GEF has recently benefited from a significant infusion of financial support, including a £330 million pledge from the UK government, which forms part of the ongoing efforts to reach an ambitious funding target of billion for the GEF-9 cycle. “Investing in nature is investing in resilience and sustainable development for people and planet,” Mesa Puyo asserted, signaling a strong commitment to leverage these funds to foster innovative solutions that tackle environmental degradation while simultaneously promoting economic growth.
Diego Mesa Puyo brings a wealth of experience to his new role. Previously, he held the position of Deputy Chief of the Climate Policy Division at the International Monetary Fund (IMF), where he contributed to shaping international climate fiscal policies. His tenure as Colombia’s Minister of Energy and Mines from 2018 to 2022 was marked by aggressive initiatives aimed at transitioning Colombia towards renewable energy sources, culminating in the mobilization of over billion in private investments for clean energy projects. His background positions him uniquely to lead the GEF in forging partnerships between governments, private investors, and local communities, emphasizing the urgency and importance of collaborative approaches to environmental challenges.
Under Mesa Puyo’s stewardship, the GEF aims to prioritize integrated solutions that address pressing environmental issues while promoting financial inclusivity. He articulated a commitment to accelerating the deployment of blended finance, enhancing institutional efficiency, and facilitating whole-of-government and whole-of-society approaches to addressing environmental degradation. An essential element of the GEF-9 funding cycle will be the enhanced support directed towards Least Developed Countries (LDCs) and Small Island Developing States (SIDS), which are often the most vulnerable to the impacts of climate change.
This term is also anticipated to deepen engagement with Indigenous Peoples and local communities, whose traditional knowledge and practices play a crucial role in environmental stewardship. Mesa Puyo’s strategy includes recognizing and empowering those closest to the land and its resources, thereby enhancing conservation efforts and ensuring equitable benefits from environmental initiatives.
In terms of academic credentials, Mesa Puyo holds a master’s degree in economics from McGill University alongside a bachelor’s degree in economics from Concordia University. He has maintained his Chartered Financial Analyst (CFA®) designation since 2012, underscoring his commitment to excellence in financial management and economic analysis.
In a world increasingly defined by environmental crises, Diego Mesa Puyo’s appointment at the GEF symbolizes hope and an unwavering dedication to a sustainable future. As he begins his four-year term, the international community eagerly anticipates the innovative measures he will spearhead to balance ecological imperatives with economic development, thereby fostering a resilient and sustainable planet for generations to come.
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