Team | One Earth

Meet the One Earth Team

Team Members

  • Justin Winters

    Justin Winters

    Co-Founder and Executive Director

    Driven by a passion for nature, Justin Winters is committed to democratizing climate philanthropy in order to create an inclusive and impactful movement to address the climate crisis from the ground up. She is the Co-Founder and Executive Director of One Earth, a philanthropic organization working to galvanize science, advocacy and philanthropy to drive collective action on climate change. Through One Earth, she is focused on creating a vision for the world that is possible by 2050 – one in which humanity and nature coexist and thrive together. This vision is based on three pillars of action: 100% renewable energy, protection and restoration of 50% of the world’s lands and oceans, and a transition to regenerative, carbon-negative agriculture. Prior to One Earth, Justin served as Executive Director of the Leonardo DiCaprio Foundation for 13 years, where she built the organization’s grant-making program, which awarded over $100 million in grants across 60 countries and created a series of innovative philanthropic funds, including Oceans 5, Shark Conservation Fund, The Solutions Funds, Lion Recovery Fund, Elephant Crisis Fund, and Quick Response Fund for Nature.

  • Karl Burkart

    Karl Burkart

    Co-Founder and Deputy Director

    Karl is the Deputy Director of One Earth, and formerly the Director of Media, Science & Technology at the Leonardo DiCaprio Foundation. One Earth supports academic institutions and NGOs working on the cutting edge of climate and energy science, biodiversity mapping, and sustainable food systems. Through grantmaking and development capacity, the program is particularly focused on scaling innovative applications in big data, remote sensing, and artificial intelligence to accelerate land and ocean conservation efforts. Karl also oversees production and distribution of content across One Earth’s website and social media properties, along with award-winning initiatives such as We Love the Earth and the Global Safety Net, which was just named a "World Changing Idea" by Fast Company. Karl is co-author of “A Global Deal for Nature: Guiding Principles, Milestones, and Targets”, a groundbreaking paper published in Science Advances in 2019 that sets out the evidence base for an ambitious conservation agenda. 

  • Nuna Teal, PhD

    Nuna Teal, PhD

    Program Director

    Nuna will join in implementing the strategic vision of One Earth through support of on-the-ground action. She grew up on a large, diverse organic farm in Vermont that was also the site of a project by her father to study, domesticate and protect muskoxen for the economic use of their fine wool by indigenous peoples of the Far North. Conceived on Spitsbergen, Nuna traveled with the Sami and their reindeer, then migrated between the farm and Arctic wilderness and communities with the muskox project. After traveling the world on her own, studying dance and completing graduate studies in ecological anthropology, she returned to the family farm to rediscover a love for agriculture and raise two daughters. During the UN Year of Soil, she joined the Jena & Michael King Foundation in Los Angeles and served as its Executive Director for 5 years. Focusing on regenerative agriculture, healthy soils and climate, and also the general health of all beings, biodiversity and living systems, the foundation gave special attention to the rising youth and indigenous movements. Nuna currently serves on the Board of the Mni Wiconi Health Clinic & Farm, a model for decolonized, Lakota designed care to be built at Standing Rock.

  • Jesse Ladner

    Jesse Ladner

    Director of Operations

    Jesse oversees One Earth’s internal operating systems.  After a brief career in biotech he attended law school, and has since developed a versatile skill set for guiding nonprofit operations, finance, HR, technology, and risk management. Past roles have included Associate Counsel to the fund that provides benefits to members of NYC’s largest municipal employees union, Managing Director to a small but mighty nonprofit focused on advancing the standard of care for psychological trauma, and Associate Administrative Director to a leading democracy reform organization. Jesse was instilled with conservationist values early in life by his parents, activists who worked in the 1970s to protect the Hudson River from polluters and later to defend New York’s Catskill mountains from would-be deforesters. Outside of his day jobs, he has devoted himself to various causes he believes in, including finding ways to make himself useful in the effort to respond to the ongoing climate emergency. He lives with his partner, dog, and two young kids in western Massachusetts, where hiking trails are plentiful and they have been thrilled to spot groundhogs, bears, foxes, hawks, and a good deal of other wildlife from the back windows of their home. 

  • Edward Bell

    Edward Bell

    Program Manager

    Edward manages the digital platforms and social media channels for One Earth. He also handles content production for OE's affiliated campaigns, such as We Love The Earth and the Global Deal For Nature. He assists the Deputy Director on all communications and coordination. Previously, Edward managed the Changefactor program that designed and built multiple websites for philanthropic coalitions, including the Lion Recovery Fund, Elephant Crisis Fund, Shark Conservation Fund, Quick Response Fund for Nature, Before the Flood, and Oceans 5, among many others. Edward led the creation and distribution of all social media content for the Leonardo DiCaprio Foundation and the Global Call for Climate Action. He has specialized in building and expanding digital presences for climate coalitions and environmental organizations since 2011. He lives in sunny Los Angeles with his partner and their collection of exotic terrariums, unconventional pets, and a ridiculous amount of comic books.

  • Orquidea Hale

    Orquidea Hale

    Program Associate

    Orquidea Hale comes from nearly 10 years in the food industry, from hospitality to food production and natural grocer management. From this practical knowledge, she has developed a deep understanding and commitment to sustainable change in the food system. She received her Bachelors in Business Management at San Francisco State University and recently completed a certificate in Food Studies from UCLA. As Program Associate with One Earth she ensures coordination between projects and helps with the grant management process.

  • Edith Espejo

    Edith Espejo

    Program Associate

    Edith supports OE administration and social media platforms. She has a B.S. in Environmental Biology and a minor in Regenerative Studies from California Polytechnic University, Pomona. There she helped develop a mobile food pantry, ethnobotany workshops, and spearheaded food justice and diversity ambassador initiatives on campus. She is passionate about grassroots organizing and the intersections of the environmental and social equity.

  • Lindsey Jean Roetzel

    Lindsey Jean Roetzel

    Writer and Content Producer

    Lindsey has written a variety of content, from children’s storybooks to commodities trader manuals, all with the firm belief everything has a story to tell. A former writer and producer for Totally TV, TubeScience, and Cubcoats, she believes the best way to make people pay attention and care is to make material lively and engaging. Raised in Nebraska and currently living in Los Angeles, she loves the outdoors and can usually be spotted with her head in a book.

  • Patrick Stephen Brown

    Patrick Stephen Brown

    Digital Media Producer

    Patrick is a content producer who specializes in video editing, web and graphic design, and online presence. He has worked with numerous clients, most notably: The Nebraska Attorney General’s Office, Bruning Law Group, The Nebraska American Civil Liberties Union, The Office of the New York State Attorney General, Author Pamela L. Newton, and Cubcoats. Patrick is an alumni of The Los Angeles Film School and the University of Nebraska-Lincoln.

  • Marcela Maria Martins de Souza

    Marcela Maria Martins de Souza

    One Earth Fellow, Brazil

    Marcela is a journalist, based in Brazil, with special interest in the environment and climate change. Currently, she is a reporter and TV presenter at Rede Minas, and a Public Science Communication postgrad student at the Federal University of Minas Gerais. For the past seven years, she’s been covering environmental issues, with a focus on mining impacts, and she’s produced dozens of reports about themes such as traditional and indigenous knowledge and conservation projects. She’s also the director of a short film, “Amazon Rainforest TV”, and a writer, author of the novel “O nome do Lobo” (The wolf’s name).

  • Ishita Yadav

    Ishita Yadav

    One Earth Fellow, India

    Ishita has been actively involved in journalism for four years and specializes in nature-based solutions, clean energy, and the intersection of gender and climate change. Ishita got into journalism so she could help highlight the efforts of individuals from traditionally marginalized groups in the fight against climate change after noticing the disproportionate representation of certain groups in the media.  She aspires to inspire and empower youth to take meaningful and impactful actions to create momentum for positive change. 

  • Watsemba Miriam

    Watsemba Miriam

    One Earth Fellow, Uganda

    Watsemba Miriam is an award winning documentary photographer and writer based in Uganda, with a background in Journalism and Communication. She is passionate about storytelling, and believes that stories can be an effective avenue for driving change and development. Her dream is to help people express themselves authentically, through storytelling. Miriam is a multiple time grantee, who has published and exhibited both locally and internationally. Through her works, she seeks to archive the truth and provoke action.

  • Lillian Keneqa

    Lillian Keneqa

    One Earth Fellow, Papua New Guinea

    Lillian S Keneqa (pronounced KE-NE-A, the “Q” is silent) is a journalist who believes that journalism is a way of life no matter where you work! She is from the small pacific island nation of Papua New Guinea. Currently, Lillian is employed as a communications officer with Save the Children in PNG. Previously, she was employed by PNG’s local television media company EM TV, where she contributed stories and also produced the news. Lillian is passionate about community development, mental health, agriculture and climate change/environment and writes about small initiatives individuals are taking to make a difference in their sphere of influence. Lillian also loves to travel and do photography. She believes in the power of storytelling and the positive, life changing impact it can have on individuals.  

Our Board

  • Coretta Anderson

    Coretta Anderson

    Board Member

    Coretta Anderson is the Senior Manager of the Influencer Marketing and Strategic Partnerships team at EarthJustice. She has over 10 years of diverse project experience serving non-profit, public and private sector organizations,  and specializes in designing, managing, implementing and supporting creative and strategic engagement, public outreach and integrated communications initiatives. Through her work with EarthJustice, the Leonardo DiCaprio Foundation, NRDC and more, she brings a broad perspective of experience in the areas of: strategic alliances, corporate partnerships, relationship management, cause marketing, fundraising/development, public relations, sponsorship coordination, event planning and management, celebrity and influencer engagement, issue and legislative advocacy and public affairs. Coretta currently serves on the board of One Earth, and resides in Los Angeles, California. 

  • Roberta Baskin

    Roberta Baskin

    Board Member

    Roberta Baskin earned more than 75 journalism awards during her storied investigative reporting career. Among her honors include several prestigious duPont-Columbia Awards, George Foster Peabody Awards, multiple Emmys, and a year long Nieman Fellowship at Harvard University. The results of her investigations have improved government and corporate practices affecting environmental regulations, healthcare, and consumer protections. More recently, Roberta shifted her focus to global corporations demonstrating exemplary conduct. Roberta created AIM2Flourish, a platform showcasing thousands of innovations written by business school students in more than 80 countries. Roberta was featured in Real Leaders magazine for its “Top 100 Visionary Leaders” issue. Roberta serves on the boards of One Earth, The Carbon Underground, FoolProof Foundation for Financial Literacy, The Peace Studio, O Street Museum Foundation, Magnolia Moonshot 2030, and the Robert F. Kennedy Journalism Awards Committee.

  • Spike Buckley

    Spike Buckley

    Co-Founder

    Spike Buckley is committed to mobilizing supporters and activating investors to tackle the climate crisis. He is Co-Founder and a board member of One Earth, a non-profit initiative working to galvanize science, advocacy and philanthropy to drive collective action on climate change. Prior to One Earth, Spike founded Earth’s Call Fund with a mission to deploy capital to innovators targeting climate change. He is an avid supporter of the Sierra Club, Greenpeace, Conservation Colorado, the League of Conservation Voters and NextGen America. In addition to his climate-focused work, Spike has four decades of experience as a commercial real estate owner and developer with projects across the U.S. and Canada. Spike also serves on the boards at Pharmajet, Inc., Alameda Corridor Business Improvement District and BioCare Systems, Inc. In 2019, Spike was honored with the Earth Legacy Leadership Award from the American Renewable Energy Day Summit (AREDay). He is a graduate of the University of Colorado with a BA in Economics.

  • Jay Halfon

    Jay Halfon

    Board Member

    Jay Halfon is a practicing attorney and public policy strategist. His practice focuses on legal issues affecting tax-exempt organizations. He represents many leading foundations, advocacy groups and political organizations. He has a broad range of experience influencing public policy at the state and national levels. He currently advises and supports a variety of organizations working on climate campaigns including efforts to stop oil and gas extraction in California. Mr. Halfon is a founding board member of the international climate change organization 350 and serves on the boards of several grant-making institutions including the Park Foundation with assets of $400,000,000

  • Michele Hunt

    Michele Hunt

    Board Member

    Michele Hunt is a strategic advisor to leaders who are committed to operationalize their vision of health and wellbeing for all people and the planet. She served in President Clinton’s administration where she worked for Vice President Al Gore in the Reinventing Government initiative. Michele previously served on the executive leadership team of Herman Miller as Vice President For People, where she facilitated their whole company transformation which resulted in them being recognized as one of the top environmentally responsible companies in the world, and the best company for people, women and working mothers. Michele has written three books, published numerous articles and co-directed a documentary. Her latest book, profiles people and organizations that are contributing to creating a flourishing world including: Waka-Waka who provides solar light and power to communities with no access to electricity; EAT, a science-based global platform for food system transformation; the “Business for Good”, B Corps movement, and Rid-All urban farm in Cleveland that provides organic, healthy food to people living in food deserts. Michele serves on the advisory boards of Magnolia Moonshot 2030 and the  Fowler Center.

  • Jena King

    Jena King

    Co-Founder

    Jena King is a philanthropist who oversees the giving of the Jena and Michael King Foundation, which she began in 2000 with her husband, Michael, who passed away in 2015. She has four children and lives in Los Angeles. Jena is a recipient of Global Green’s Entertainment Industry Environmental Leadership Award, and a founding member of COACH for Kids, an organization providing medical assistance to underserved children. She has served on the boards of the Environmental Media Association, Kiss the Ground and Healthy Child Healthy World (overseeing its partnership with the Environmental Working Group), and has co-produced several major documentaries. Jena is Co-Founder of One Earth, and also serves on the boards of the NRDC and OCEANA, and is a member of Mayor Eric Garcetti's L.A. Sustainability Leadership Council.

  • Brad Leibov

    Brad Leibov

    Board Member

    Brad Leibov is a social impact leader driven by his passion for developing systems-level initiatives to address our greatest environmental challenges. With more than two decades of executive leadership experience, he has served as a founder, co-founder, chief executive officer, board member, and advisor to numerous social enterprises and impact organizations. As CEO of EarthShare, Brad drives the organization’s growth as a leader in environmental philanthropy, strategic partnerships, and corporate and workplace engagement to inspire and accelerate transformative environmental progress. Prior to joining EarthShare, Brad served as President and CEO of the Liberty Prairie Foundation, where he launched pioneering programs to improve the health of land, water, and communities in the Upper Midwest. His belief in the power of peer learning and collaboration inspired his work to co-launch Funders for Regenerative Agriculture, where he serves as a steering committee member of North America’s first philanthropic initiative dedicated to addressing global climate change by accelerating the emergence of regenerative agriculture, soil, and working lands systems. Brad is also Vice-Chair of the Board of Directors for the Sustainable Agriculture and Food Systems Funders, and serves on the Boards of One Earth, Liberty Prairie Foundation, and The Carbon Underground.

  • Rick Ridgeway

    Rick Ridgeway

    Chairman

    Rick Ridgeway is Patagonia’s Vice President of Public Engagement, and as one of the company’s key spokespersons he represents and promotes the company’s mission to “Save our Home Planet.” During his 15-year tenure at the company he has worked with teams to develop and launch environmental and sustainability initiatives including Freedom to Roam, the Footprint Chronicles, the Responsible Economy Campaign and Worn Wear. He also was founding chairman of the Sustainable Apparel Coalition, which is today the largest apparel, footwear and home textile trade organization in the world. In addition, Rick is recognized as one of the world’s foremost mountaineers. With three companions, he was the first American to summit K2, and he has done other significant climbs and explorations on all continents. He has written six books, many magazine stories and produced and directed dozens of television shows. National Geographic honored him with its “Lifetime Achievement in Adventure” award. In corporate sustainability, he is emeritus board member of the Sustainable Apparel Coalition and on the board of its for-profit arm, HiggCo. In addition to serving as Board Chairman at One Earth, he serves on the boards of Tompkins Conservation, the Turtle Conservancy, and the Kiewit Family Foundation, and is on the National Council of the World Wildlife Fund. Rick lives in Ojai, California, and has three children and four grandchildren.

  • Justin Winters

    Justin Winters

    Co-Founder and Executive Director

    Driven by a passion for nature, Justin Winters is committed to democratizing climate philanthropy in order to create an inclusive and impactful movement to address the climate crisis from the ground up. She is the Co-Founder and Executive Director of One Earth, a philanthropic organization working to galvanize science, advocacy and philanthropy to drive collective action on climate change. Through One Earth, she is focused on creating a vision for the world that is possible by 2050 – one in which humanity and nature coexist and thrive together. This vision is based on three pillars of action: 100% renewable energy, protection and restoration of 50% of the world’s lands and oceans, and a transition to regenerative, carbon-negative agriculture. Prior to One Earth, Justin served as Executive Director of the Leonardo DiCaprio Foundation for 13 years, where she built the organization’s grant-making program, which awarded over $100 million in grants across 60 countries and created a series of innovative philanthropic funds, including Oceans 5, Shark Conservation Fund, The Solutions Funds, Lion Recovery Fund, Elephant Crisis Fund, and Quick Response Fund for Nature.