350
Our People
We are a team of smart, strategic, driven people spread all around the world. We believe that a diverse, equitable, inclusive, and collaborative group of people bring a variety of approaches to the work we do.
Interim Executive Director
Olivia Langhoff grew up in Germany and worked in South Africa, UK, and Switzerland before settling in the Netherlands. Her experience as a campaigner and activist spans over three decades and on issues connected to human rights, environmental protection and the climate crisis – combining accurate strategic vision and intentional transversality on 350's leadership.
Head of Public Engagement
Namrata (Nama) Chowdhary is an experienced advocacy strategist, systems thinker, and facilitator. Born in India, she currently lives in the UK and has spent over two decades telling powerful stories, and bringing people together to form strong alliances around intersecting environmental and social justice causes. Leading 350.org's Public Engagement department with a human-centered approach, Nama loves that her designation abbreviates as 'HoPE'.
Head of Operations
For more than two decades helping civil society organizations to strategically manage their resources, Rob Saunders has built his long-standing path as activist through his work with humanitarian non-profits. He is based in the UK, and leads 350.org's department responsible for organizational health and security.
Head of Regions
Savio Carvalho, originally from India and currently living in the Netherlands, has worked with human rights, development and campaigning organizations for over two decades and across several countries in four continents. His belief that climate justice is a basic human right translates into his leadership over 350.org's department responsible for aligning and empowering our local work across the globe.
Head of Campaigning and Organizing
Sonia Kwami matches her passion for movement building with an extensive background in campaigning at local and global levels. Based in Ghana and with over two decades of experience supporting teams in more than 60 countries, especially in the Global South, she leverages her strong leadership skills to steer 350.org's teams responsible for training, network and partnership building, and global online and offline campaigning.
Our Regional Teams
Our Global Support Teams
Rashmi Mistry
Board Chair
Rashmi is a campaign strategist who has been involved in the climate movement for over 15 years and is now a co-founder at a participatory design collective Better by Codesign working with partners on climate, human rights and new economy.
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China Brotsky
Vice Chair and Treasurer
China Brotsky is an active leader in the global social justice movement who uses her skills in finance, operations and governance to support organizations in the environmental justice, climate, anti-corporate power and immigrant rights movements. She served most recently as a senior leader at SumOfUs, a global online corporate accountability organization.
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Daniela Costa
Secretary
Daniela Costa is based in Sao Paulo. Daniela Pais Costa is currently the Americas Senior Development Manager at Greenpeace International. She has over 15 years of experience advancing human rights and social justice at the global, regional and national level. She was part of and led one of the most pioneering organizational changes in the development sector at the time: the internationalization of ActionAid and later on, she led the transition of multi-affiliated Oxfam to one Oxfam in the Southern Africa region.
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Chibeze Ezekiel
Chibeze is the coordinator of the Strategic Youth Network for Development (SYND), which convenes the Youth in Natural Resources and Environmental Governance (Youth-NREG) Platform in Ghana. He is a certified Youth Master Trainer on Climate Change and an appointed National SDGs Champion by CARE Denmark. He is also a co-founder of 350 Ghana Reducing our Carbon (G-ROC), the local chapter of 350.org. He has significant experience in promoting youth inclusion in the governance of the natural resources and environmental sector.
Ellen Sprenger
Ellen Sprenger is a strategist and advocate for social and climate justice. Since 2004, she has been the founder and CEO of Spring. She is a believer — especially in human potential and our collective ability to solve the problems of our time. She is a curious and creative optimist, an espresso enthusiast and avid meditator. Her areas of expertise include multi-actor conference facilitation, future-scenario development, strengthening financial innovation and resilience for justice organizations globally, and executive coaching.
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Jessy Tolkan
Currently focused on shifting the auto-industry in a more sustainable direction, Jessy has spent the last decade as a movement leader working to build progressive change. She recently served as Citizen Engagement Laboratory’s Co-Executive Director. She was a Senior Fellow with the New Organizing Institute consulting on progressive infrastructure building, the 2012 youth vote, and next steps for the climate & energy sector. Before switching her attention to the progressive movement at large, Jessy was the Executive Director for the Energy Action Coalition.
KC Golden
KC is an active leader in the national climate movement in the USA and served as Board Chair for 350 from 2015 through 2020. He has also been active in the utility industry, helping Seattle City Light become the first major carbon-free electric utility in the late 1990s. He has campaigned for energy solutions and climate justice at the state and local levels in the Northwest US, and served as Energy Policy Director for the State of Washington.
Pooven Moodley
Pooven Moodley is an international human rights and environmental lawyer from South Africa and a social justice activist. During the past five years he was the Executive Director of Natural Justice, a human rights and environmental justice non-profit law firm, representing indigenous and local communities across Africa in their struggles to stop the violation of rights and the destruction of their territories of life. Before joining Natural Justice, Pooven was the International Head of Campaigns for ActionAid and Country Director for Oxfam Great Britain in South Africa.
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Terry Odendahl
Terry has spent more than 50 years bridging the gap between our natural and human worlds. She is the retired President and CEO of Global Greengrants Fund, where she served for over a decade. An anthropologist by training, Terry has held faculty positions at Georgetown University’s Public Policy Institute; the University of California, San Diego; and Yale University. She is the author or editor of four books: Charity Begins at Home: Generosity and Self-Interest Among the Philanthropic Elite; America’s Wealthy and the Future of Foundations; Women and Power in the Nonprofit Sector; and Career Patterns in Philanthropy.
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Yeb Saño
Yeb Madla Saño is a climate justice activist from The Philippines and currently serves as the Executive Director of Greenpeace Southeast Asia. He is also the Vice-Chair of the Board of the Laudato Si’ Movement (the Global Catholic Climate Movement). Previously, he was Commissioner of the Philippines’ Climate Change Commission, the country’s lead policy-making government body on climate change. Yeb was the Philippines’ chief negotiator in the United Nations Framework Convention on Climate Change (UNFCCC) and was widely known for championing climate justice in the climate negotiations.
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Bill McKibben
Bill is Founder and Senior Advisor at 350.org and is the Schumann Distinguished Professor in Residence at Middlebury College in Vermont. He is a 2014 recipient of the Right Livelihood Prize, sometimes called the 'alternative Nobel' and is a founding fellow of the Sanders Institute. Bill has written a dozen books about the environment, including his first, The End of Nature, published 25 years ago, and his most recent, Falter: Has the Human Game Begun to Play Itself Out?
Our Team is growing
Come join us on the journey to make work meaningful. See open roles on our Careers page.
View open positions