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.
Senior Leadership Team
Anne Jellema
Executive Director
Anne Jellema has a rich history of working with social movements, women’s organizations, and grassroots activists across Africa, Asia, Latin America, and the Middle East. Her career began in South Africa as a community organizer and land rights activist, embedding a people-first approach to strategy design and advocacy. Anne’s leadership is instrumental in navigating the climate movement’s challenges and harnessing its opportunities.
Olivia Langhoff
Managing Director, Engagement & Operations
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.
Savio Carvalho
Managing Director, Campaigns & Networks
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.
Our Board
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. Prior to this Rashmi was the global head of the GROW campaign for food and climate justice at Oxfam International, which included all of Oxfam’s global public and policy campaigns on climate, land rights, sustainable agriculture, food value chains and rights of women small scale producers. Her career began in the private sector in media and communications working with well known brands, before transferring her strategic and influencing skills to social and environmental justice, first with CAFOD, then Civicus, before joining Oxfam in South Africa where she worked with communities of women and activists to influence national to global food and climate policies. Rashmi is a passionate advocate for ensuring the voices of women and people most affected by the climate crisis are at the heart of policy and decision making. Rashmi describes herself as a global citizen being a Kenyan born Indian, brought up in the UK, lived in South Africa for 12 years and is now living in rural France.
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. Besides 350.org, she currently serves on the Board of Directors of the ACLU of Northern California and Oasis Legal Services, a nonprofit law firm providing asylum services to LGBTQIA+ refugees. China spent over 20 years on the executive leadership of Tides. Her work included building a bi-national peer-learning network on collaborative space and an online donation application for social justice organizations. She was also a founding member of the Political Ecology Group, a Bay Area environmental justice organization and served on the boards of CorpWatch, Global Greengrants Fund and Greenpeace US. In 2020, she also worked with Seed The Vote to support the election work of grassroots organizations in AZ, FL, GA and PA.
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. Previous to Greenpeace, she worked at Making all Voices Count, an innovative programme that tests and documents learning on whether technology can foster transparency and accountability. She has worked with organizations from over 20 countries supporting organizations and their leadership in their development with focus on strategy development, programme development, board leadership and change processes.
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.
Ivan Rosales
Ivan Rosales is the Vice President of Finance at Hispanics in Philanthropy (HIP), a network of organizations and individuals dedicated to strengthening Latino leadership and expanding philanthropic investment in Latino communities. Ivan has extensive experience building out systems and infrastructure for social impact organizations. Prior to joining HIP, he was the chief financial and operating officer at the Clara Lionel Foundation, where he helped mobilize millions in philanthropic investments across the United States, the Caribbean, and East Africa to advance climate solutions. Ivan holds a Masters of Arts from New York University and a BA from California State University, San Bernardino. He currently serves on the Boards of Consumer Reports, the Donors of Color Network and the AJ Muste Foundation for Peace and Justice.
Jenny Kendler
Jenny Kendler is an interdisciplinary artist, environmental activist, naturalist and arts entrepreneur based in Chicago. Over the last two decades, her research-driven artworks centered on climate change and biodiversity loss have been shown at London’s Hayward Gallery, NYC’s Governors Island, Storm King Art Center, the Smithsonian Museum of Natural History, the MCA Chicago and public locations from remote deserts to tropical forests. Her work has been featured on NPR, BBC Radio, in the New Yorker, Washington Post and the New York Times, and is in museum and public collections across the US and Europe. As a speaker, she has presented at Aspen Ideas: Climate, Oxford University, University of Chicago, the Obama Presidential Center and more. A previous artist-in-residence with NRDC and lead organizer for Extinction Rebellion Chicago, she is the current Artistic Fellow at the Center for Humans and Nature. She also sits on the Board of Directors of artist residency ACRE and community arts foundation ArtsFIRST Chicago. She is the owner and Creative Director of carbon-neutral artist website platform OtherPeoplesPixels and a founding member of Artists Commit—an initiative to raise climate consciousness in the artworld. She centers the Jewish value of tikkum olam in her efforts to help us heal our relationship with the more-than-human world.
Kristine A. Stallone
Kristine A. Stallone (she/her) is a senior financial and operations executive with more than 25 years of domestic and international experience in the corporate, philanthropic and nonprofit sectors. Kristine is currently consulting with several organizations around issues of financial management and operations. Kristine previously served as the Vice President for Finance and Administration at American Jewish World Service (AJWS). As AJWS’s top financial officer, Kristine was responsible for leading and overseeing finance, information technology, human resources, risk management and administrative operations. Prior to AJWS, Kristine served as the Chief Financial Officer at the Arcus Foundation. After starting her career in Public Accounting, she served as Controller of the Americas and Global Functional teams for Bloomberg L.P. and as Assistant Controller at World Color Press. Kristine volunteers for and supports several charitable organizations. She is currently an officer of the board of directors for The American LGBTQ+ Museum and 350 Action. She is a Certified Public Accountant with a B.S. in accounting from Mercy University in New York.
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. He has contributed to a range of struggles across the globe starting with the anti-apartheid struggle in South Africa when he was 14. He is a Council member of the ICCA Consortium ( a movement of indigenous and local communities protecting their territories) and the Chair of the Defending the Territories of Life stream working with environmental and land defenders. He is also on the Board of Digital Democracy which backs up indigenous communities and their territories working technology and human rights. Pooven co-founded the Earthrise Collective which weaves ancient wisdom, activism and alternatives.
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. She has published Op-Eds for The Guardian, EcoWatch, The Chronicle of Philanthropy, The New York Times, Alliance Magazine and other outlets. Terry helmed the National Network of Grantmakers in the 1990s, and worked as a program officer at the Wyss Foundation to protect public lands in the western United States in the early part of this century. Terry is co-founder of the Institute for Women’s Policy Research in Washington, D.C., and the Institute for Collaborative Change in New Mexico. In addition to 350, she currently serves on the boards of Save the Colorado and the EDGE Funders Alliance.
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. He also served as Chair of the UNFCCC’s Long Term Finance Work Programme. He has been working with local communities and international bodies for more than 25 years, tackling domestic and international issues that relate to climate policy, clean energy, international finance, biodiversity, marine conservation, disaster risk reduction, and governance, including a stint as the Director of the Climate and Energy Programme of the World Wide Fund for Nature. Yeb led a 1500 kilometer walk with other climate activists from Rome to Paris in 2015. He is also an avid scuba diver, wildlife photographer, cyclist, painter, and a firm believer in community empowerment.
Emeritus
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.
