Who We Are

CARTER ROBERTS is the President and CEO of World Wildlife Fund. His path to conservation began with a love for climbing mountains. En route, he worked for Proctor and Gamble and received an MBA from Harvard Business School. He went on to lead international and science programs at The Nature Conservancy before coming to WWF in 2004.  With inspiration from nature, and a background in business, he has sought to solve problems by creatively influencing the way markets and businesses operate. To this end, he has tracked the rarest creatures to the far ends of the world, has worked with communities and heads of state in North America, Africa, Latin America and Asia, and has signed agreements with some of the world’s largest corporations to set new industry standards for resource efficiency. Carter has written both academic papers and informal blogs for numerous publications ranging from Fast Company to Conservation Letters. He serves on the boards of the Grantham Institute for Climate Change, collaboration between Imperial College and the London School of Economics; InterAction, a consortium of development and environmental NGOs seeking a holistic approach to foreign assistance; and the Nicholas Institute at Duke University.

MARCIA MARSH, Chief Operating Officer, oversees the execution of WWF’s strategy, guiding our work in policy, markets and field conservation and resolving complex business problems. She is also our executive lead for the CARE-WWF Alliance, a partnership addressing the linkages between poverty and environmental degradation. Marcia serves on the Governing Committee of the Natural Capital Project, a partnership between Stanford University, The Nature Conservancy and WWF to transform institutional and market decision-making using ecosystem services. She is also responsible for the performance of critical operating systems, including human resources, finance and IT, which support the work of more than 800 employees in the U.S. and abroad. Marcia joined WWF in 2004 as the Senior Vice President for Operations and led the design and implementation of key business processes. She has since served as the organization’s lead change manager, helping to align people, processes and technology with an ambitious strategy to bring conservation to scale. Prior to joining WWF Marcia served in a number of leadership roles including Vice President of Government Transformation at the Partnership for Public Service; Practice Leader for Integrated Solutions and International Consulting for Watson Wyatt Worldwide; and partner with Price Waterhouse’s Global Human Resource Solutions business. She has 26 years of general business and human capital consulting experience focusing on helping complex organizations achieve their business strategies. Marcia, a graduate of Randolph-Macon Woman’s College, studied international politics at the University of Virginia and is a certified public accountant. She also serves on the board of WEAVE (Women Empowered Against Violence).

MARGARET ACKERLEY, Senior Vice President and General Counsel, helps determine and deliver WWF’s global conservation strategy. She provides direct oversight of WWF’s legal, risk management, internal audit, safety and security and Board relations departments, providing day-to-day counsel on all legal and governance issues. Her areas of expertise include nonprofit regulatory compliance, corporate governance, contracts, litigation, employment, tax, trusts and estates, fundraising, political activity, insurance, intellectual property and technology. Prior to joining WWF in 1999, Margaret practiced law at Wilmer, Cutler & Pickering in Washington, D.C. While in private practice, she provided counsel to numerous Fortune 500 and nonprofit clients, and was recognized with the firm’s first pro bono publico services award. Earlier in her career, she was a public finance analyst for the First Boston Corporation. Margaret graduated summa cum laude from Harvard College and received her law degree from Yale Law School.

JASON CLAY is WWF’s Senior Vice President, Markets. He leads WWF-US’ work on agriculture, aquaculture, business and industry, finance, fisheries, and forests. Over the course of his career he has worked on a family farm, taught at Harvard and Yale, worked in the U.S. Department of Agriculture, and spent more than 25 years working with human rights and environmental organizations. In 1988, Dr. Clay invented Rainforest Marketing, one of the first fair-trade ecolabels in the United States, and was responsible for co-creating Rainforest Crunch and more than 200 other products with combined sales of $100 million. From 1999-2003, he co-directed a consortium with WWF, World Bank, UN Food and Agriculture Organization, and National Aquaculture Centres of Asia/Pacific to identify and analyze better management practices that address the most significant environmental and social impacts of shrimp aquaculture. Since then he has co-convened (with the IFC and others) multi-stakeholder roundtables of investors, buyers, producers, researchers and NGOs to identify and reduce the social and environmental impacts of such products as salmon, soy, sugarcane, cotton, and palm oil. Dr. Clay leads WWF’s efforts to work with private sector companies to improve their supply chain management, particularly with regard to ingredient sourcing and carbon and water neutrality, and with industries to transform entire sectors by improving their overall performance. Clay is the author of 15 books, more than 250 articles and 500 invited presentations. His most recent books are World Aquaculture and the Environment, Exploring the Links between International Business and Poverty Reduction: A Case Study of Unilever in Indonesia, and World Agriculture and the Environment. Dr. Clay studied at Harvard University and the London School of Economics before receiving a Ph.D. in anthropology and international agriculture from Cornell University.

TOM DILLON, Senior Vice President, Field Programs, oversees WWF’s conservation efforts around the world. This includes places such as the Amazon, the Arctic, Coastal East Africa, and the Himalayas; species such as sea turtles, tigers, and polar bears; and thematic areas including freshwater, people and conservation, and wildlife trade. Since joining WWF in 1993, Tom established the Greater Mekong Program while living in Vietnam and Laos, and he played a leading role in developing some of WWF's most prominent programs including the Amazon Regional Protected Areas Program (ARPA) in Brazil and the Terai Arc in Nepal and India. Prior to WWF Tom worked at the National Parks Conservation Association, Wilderness Society, and as a ranger in the Mount Hood National Forest. Tom holds a master's degree from Yale University’s School of Forestry and Environmental Studies. He shares his passion for wildlife and the great outdoors with his two daughters, Chloe and Cynthia.

REBECCA GIRVIN-ARGON, Senior Vice President, Development, oversees all aspects of private fundraising, including major and planned gifts, annual giving, and corporate and foundation support.  Before coming to WWF, she served as The Nature Conservancy’s (TNC) chief philanthropy officer, where she and her team were responsible for the organization's $1.6 billion Campaign for a Sustainable Planet, the largest private development campaign ever undertaken for conservation. Previously, she served as the Conservancy's director of principal and major gifts and as head of development for the Conservancy's Illinois program. Her accomplishments include the launch of the "100 Days Initiative," which raised $100 million for international programs at TNC. In 2006, Girvin-Argon was selected for a fellowship in Indonesia and spent nine weeks there developing the program's first strategic marketing plan and training volunteer leaders and staff. Prior to joining the Conservancy in 2001, Girvin-Argon's appointments included vice president for external affairs at the Chicago Botanic Garden and executive director of the Museum Center Foundation in Cincinnati, Ohio.  She has served as a director of the Association for Fund Raising Professionals, Chicago Chapter, and on the board of the Development and Membership Committee of the American Association of Museums.

GINETTE HEMLEY, Senior Vice President, Conservation Strategy and Science, oversees development and execution of WWF’s conservation strategy and jointly manages the organization’s $115 million conservation budget. She works with WWF’s conservation teams to facilitate the integration of field-based conservation efforts with global market, policy and partnership initiatives to advance the organization’s work in 19 priority places around the world and track the effectiveness of the WWF’s programs. Previously, as WWF's Managing Vice President for Conservation, she was responsible for the day-to-day operations of WWF’s conservation program. As an authority on endangered species, Hemley founded WWF’s Species Conservation Program and launched successful global recovery strategies for critically endangered species while serving as Vice President for Species Conservation. Prior to that, she directed WWF’s International Wildlife Policy Program and wildlife trade program, TRAFFIC.  A biologist with over 20 years of international conservation experience, she received a BS in biology from the College of William and Mary, studied history and philosophy at Oxford University, and is an ELIAS Fellow at the Massachusetts Institute of Technology.

TERRY MACKO, Senior Vice President, Communications and Marketing, leads overall marketing and strategic communications for WWF. This includes managing and growing the base of 1.3 million WWF members in the United States through direct marketing, online initiatives and corporate marketing partnerships. He also oversees the creative expression of the WWF brand across all media and advertising channels, ensuring that WWF remains the world's most recognized conservation brand. Prior to joining WWF, Terry served in a variety of consumer marketing leadership roles, most recently as Senior Vice President of Marketing for Columbia House, the world’s largest direct marketer of entertainment products. Terry honed his expertise in marketing and advertising over a 15-year career with MCI in consumer telecommunications, where he started as a college intern and rose through the management ranks to become the Senior Vice President of Marketing for the Consumer Markets Division, an $8 billion revenue unit. Terry has been recognized by Advertising Age as one of the ‘Power 50’ marketing leaders in America and as one of the top 100 new product leaders for his work on 1-800-MusicNow, the world's first online music retailer. Terry received his BA in Marketing from The George Washington University and his MBA from Carnegie Mellon University. He serves on the Board of Directors of EarthShare, the nation's leading workplace giving federation for environmental nonprofits.

DAVID REED, Senior Vice President, Policy, leads WWF’s efforts to integrate the environmental and social aspects of development into the core economic activities of international institutions, including the World Bank Group, and has led numerous policy initiatives to change the policies and practices of these organizations. In particular, he has focused on protecting vulnerable places and vulnerable peoples threatened by international development policies and unsustainable economic growth strategies. More recently, through his writings and engagements with negotiating parties, David focused on influencing the international financial architecture for climate change in the lead-up to the United Nations Climate Change Conference in Copenhagen. Prior to joining WWF, David led development programs in Latin America, Africa and Asia at both the grassroots and managerial levels. He has authored numerous books and publications, including: Structural Adjustment, the Environment, and Sustainable Development; The Global Environment Facility: Sharing Responsibility for the Biosphere, Vol. I and Vol. II; Towards a Just South Africa; and Escaping Poverty’s Grasp: the Environmental Foundations of Poverty Reduction.