Expertise: Environmental Action

Helen Mountford

Helen Mountford is the president and CEO of ClimateWorks Foundation, a global platform for philanthropy to innovate and scale high-impact climate solutions that benefit people and the planet. She brings almost 30 years of global experience at the intersection of environmental action, economic development, and climate policy to her role.

Before joining ClimateWorks, Helen was the vice president of climate and economics at World Resources Institute where she led global teams to advance policies and economic approaches to successfully address climate change. Helen was also the program director for the New Climate Economy project, a flagship initiative of the Global Commission on the Economy and Climate that provided independent and authoritative evidence on actions which can both strengthen climate ambition and deliver social and economic benefits.

Helen previously was the deputy director of environment for the Organization for Economic Co-operation and Development (OECD). She worked at OECD for over 16 years advising governments on policy reforms and overseeing work on green fiscal reform, climate change finance and economics, fossil fuel subsidy reforms, green growth, water pricing, biodiversity incentive measures, and economy-environment outlooks and modeling. Prior to joining the OECD, Helen managed recycling schemes in England and worked for an NGO in Australia.

Helen holds Masters degrees in Environmental Economics from University College London and Environmental Management from the University of Melbourne. She has a BA in Philosophy and History.

Makeeba Browne

Makeeba Browne is the Chief of Equity, Justice and Culture at ClimateWorks Foundation. She brings over 16 years of experience working with foundations, academic institutions, nonprofits to transform ideas into effective strategies and policies that address pressing social issues. Makeeba applies her leadership and operational acumen to engage stakeholders and support programs firmly rooted in equity and justice.

Makeeba rejoined ClimateWorks in 2021 after five years of consulting with various institutions. Through her consulting practice, Makeeba has facilitated small and large group sessions related to diversity, equity, and inclusion for nonprofit, academic, philanthropic, and private organizations. She has also worked with institutions to revamp strategic plans, implement new programs, and design initiatives across many topics, including youth leadership development, equitable climate solutions, accessing arts in youth detention centers, and equitable evaluations for environmental philanthropies in the U.S. and abroad. From 2008-2016, Makeeba was at ClimateWorks, where she provided strategic portfolio management, grantmaking, and operations support.

Makeeba holds a BS in American Studies with an emphasis on race and pop culture from Dickinson College and a certificate for grant writing from Temple University. Outside of the climate and philanthropy space, Makeeba advocates creating inclusive environments on college campuses. She is also a storyteller, using narratives to imagine equitable, thriving futures for BIPOC communities across the globe.

Jason Anderson

As a Senior Program Director, Jason Anderson oversees the Governance & Diplomacy and Super Pollutant programs at ClimateWorks. His work spans efforts ranging from implementing the Paris Agreement to cleaning up dirty shipping and preventing methane leakage.

Jason has over 25 years of experience in climate and clean energy, beginning in the solar energy conversion office at the U.S. Department of Energy, which led him to promote photovoltaics for rural electrification in Central America. Jason then worked in a range of climate organizations in Brussels for 15 years, ranging from Climate Action Network Europe to the Institute for European Environmental Policy to the World Wildlife Foundation (WWF). Jason was a lead author of the IPCC special reports on ozone and climate interactions, and on carbon capture and storage; in 2007 Jason was acknowledged for his contribution to the IPCC’s Nobel Peace Prize.

Jason holds a Masters in Public Policy degree and a Masters in Science in energy and resources from the University of California Berkeley, and a degree in biological anthropology from Harvard University.

Catherine Witherspoon

Catherine Witherspoon advises ClimateWorks on the linkages between air quality management, short lived climate pollutants, and climate mitigation. Previously, she served as the program director for ClimateWorks’ non-CO₂ fast action campaign. She has 26 years of regulatory, legislative, and management experience in the air quality field. Ms. Witherspoon started as a student assistant at the California Air Resources Board in 1981, and eventually rose to Executive Officer (2003-2007). In that role, she managed a staff of 1,100 and an annual budget of $350 million. Ms. Witherspoon was directly involved in the drafting of the California Clean Air Act and California’s landmark Greenhouse Gas Solutions Act.  In the mid-1990s, she left state government and served briefly as an Expert Consultant to the U.S. Environmental Protection Agency (Region 9), Legislative Director for the South Coast Air Quality Management District, and sole proprietor of her own consulting firm, before returning to CARB in 1999 as Senior Policy Advisor to the then-Chairman Dr. Alan Lloyd.  Ms. Witherspoon has a BA in Politics from the University of California at Santa Cruz.