As the Chief Executive Officer of Global Footprint Network, Steven leads the organization globally.

A strategic manager and spokesperson with over 25 years of international, cross-functional business and non-profit experience, he has held senior management positions at Mercedes-Benz, Airbus, the Berkshire Hathaway subsidiary NetJets, the environmental non-profit CDP, and the EU standards setter EFRAG.

In his prior role as the Managing Director of CDP (formerly the Carbon Disclosure Project) in Europe, he built the non-profit into the world’s largest repository of voluntarily reported corporate climate, water and forest data. Most recently, Steven served as Senior Advisor to the Chair of the EU task force (EFRAG-European Financial Reporting Advisory Group), which was mandated to develop corporate sustainability reporting standards for the European Union.

His work has helped shape ESG policy, the world’s largest investor initiative on natural capital, and various European Unions’ reporting initiatives, including ESRS (European Sustainability Reporting Standards) and ETS (Emissions Trading Scheme).

He serves as an advisory board member of the Kiel Institute for the World Economy, a steering group member of the EFRAG Reporting Lab, a Trustee of the Live Forum Foundation, an advisor to several green tech start-ups and funds, and a Fellow of the Royal Geographical Society (FRGS) with the Institute of British Geographers. He has contributed to the World Economic Forum (WEF), the International Institute for Strategic Studies (IISS), and the Wirtschaftsrat Deutschland (German Economic Council) for many years. Steven is also a regular contributor to industry journals, conferences, and knowledge sharing at universities and think tanks, including the National Defense University in Washington, D.C., the University of Geneva, as well as INSEAD in Paris.

He holds Master’s degrees from Harvard Kennedy School of Government in Cambridge, Massachusetts and Solvay Business School in Brussels, Belgium.

Steven enjoys sailing, biking and hiking with his daughter and two dogs.

Mathis Wackernagel is co-founder and President of Global Footprint Network. He created the Ecological Footprint with Professor William Rees at the University of British Columbia as part of his Ph.D. in community and regional planning. Mathis also earned a mechanical engineering degree from the Swiss Federal Institute of Technology.

Mathis has worked on sustainability with governments, corporations and international NGOs on six continents and has lectured at more than a hundred universities. He previously served as director of the Sustainability Program at Redefining Progress in Oakland, California, and ran the Centro de Estudios para la Sustentabilidad at Anáhuac University in Xalapa, Mexico. Mathis has authored and contributed to more than 100 peer-reviewed papers, numerous articles, reports and various books on sustainability that focus on embracing resource limits and developing metrics for sustainability, including Our Ecological Footprint: Reducing Human Impact on the Earth; Sharing Nature’s Interest;  Der Footprint: Die Welt neu vermessen; Ecological Footprint: Managing Our Biocapacity Budget; and WWF International’s Living Planet Report.

Mathis’ awards include the 2018 World Sustainability Award, the 2015 IAIA Global Environment Award, being a 2014 ISSP Sustainability Hall of Fame Inductee, the 2013 Prix Nature Swisscanto, 2012 Blue Planet Prize, 2012 Binding Prize for Nature Conservation, the 2012 Kenneth E. Boulding Memorial Award of the International Society for Ecological Economics, the 2011 Zayed International Prize for the Environment (jointly awarded with UNEP), an honorary doctorate from the University of Berne in 2007, a 2007 Skoll Award for Social Entrepreneurship, 2006 WWF Award for Conservation Merit and 2005 Herman Daly Award of the U.S. Society for Ecological Economics. He was also selected as number 19 on the en(rich) list identifying the 100 top inspirational individuals whose contributions enrich paths to sustainable futures (www.enrichlist.org). John Elkington identified Mathis among the “Zeronaut 50” Roll of Honor, i.e., leading pioneers who are driving the world’s most significant problems to zero. From 2011 to 2015, Mathis was also the Frank H. T. Rhodes Class of 1956 Visiting Professor at Cornell University.

David Lin leads Global Footprint Network’s research team, and contributes to the production, development, and improvement of the National Footprint Accounts. Prior to joining Global Footprint Network, David earned his Ph.D. and worked as a post-doctoral researcher in the Systems Ecology Laboratory at the University of Texas at El Paso. His research focused on integrating models of ecosystem function with land cover change analysis in Arctic ecosystems. David is a native of California, and holds a BS in ecology, behavior, and evolution from the University of California, Los Angeles.

Marta Antonelli has been exploring how to accelerate the transition towards sustainable food systems as business advisor, researcher, and lecturer over the past 12 years. Her expertise lies in food, water and agricultural policy; sustainable and healthy diets; urban food systems; food waste; climate change; the Sustainable Development Goals.

As Food Systems Project Lead at Global Footprint Network, she contributes to research on the Ecological Footprint of food and the Food4Future project.

She earned a Ph.D. in Environment, Politics and Development (King’s College London), with a thesis on food and water security in the Middle East and North African region. She received a MSc in International Economics (La Sapienza University of Rome) and a MSc in Development Studies (School of Oriental and African Studies, University of London).

She has authored 50+ publications in scientific journals, reports, books, as well as articles on media outlets. She co-edited the book Achieving the Sustainable Development Goals through Sustainable Food Systems (Springer, 2019).

She is one of the 45 members of the expert group of the European Commission’s Joint Research Centre that will help develop the legislative framework of the Farm to Fork Strategy.

Marta lives in Zurich. She enjoys working in multidisciplinary teams, the great outdoors, and good music.

Debora has written her final master dissertation on “Tourism and Sustainable Development: toward a Tourism Net Impact Index” in synergy with Global Footprint Network, IUCN, WWF-Med and CAST Rimini. The research is a review assessment on social, economic and environmental indicators (Footprint included) aiming to work as a baseline to develop an integrated tool assessing tourism’s impact. Debora holds an international master degree in Tourism Economics and Management. She has former working experience in tourism: as a trainee for the European Institute of Cultural Routes (Erasmus +) and the Italian Institute of Culture in Shanghai (MAECI-MIUR-CRUI scholarship), as selling and reservation manager for a local travel agency promoting local tourism in Maldives. Having always been passionate about sustainability, she recently joined the Global Footprint Network to support the research team in the implementation of tourism-related projects and other projects in the Mediterranean region.

Bio coming soon

Amanda Diep leads the communications efforts at Global Footprint Network. Her responsibilities include overseeing the implementation of top initiatives, regular email engagement, and supporting project communications. She explores communications strategies that integrate the latest thought leadership and psychology of engagement. Amanda holds an interdisciplinary master’s degree in weather, climate, and society from the University of Miami in Florida and a bachelor’s degree in meteorology from San Jose State University.

Alessandro Galli is a Senior Scientist and the Mediterranean-MENA Program Director at Global Footprint Network. As Senior Scientist, he contributes to research on the Ecological Footprint methodology and technical publications. His research analyzes the historical changes in human dependence on natural resources and ecological services through the use of sustainability indicators and environmental accounting methods. Previously, he worked as technical adviser on the Al Basama Al Beeiya (Ecological Footprint) Initiative in the United Arab Emirates with the Emirates Wildlife Society (EWS-WWF) and the Environment Agency–Abu Dhabi (EAD).

Alessandro holds a Ph.D. in chemical sciences from Siena University. He is the lead author of the Mediterranean Ecological Footprint Trends report and co-author of several publications, including 13 articles in peer-reviewed journals; the article “Global Biodiversity: Indicators of Recent Declines” published in the leading journal Science; and WWF’s 2008, 2012, and 2016 Living Planet Reports. Alessandro is also member of the editorial board of the journal Resources: Natural Resources and Management. He is also a member of the Scientific Committee of the MedSea Foundation and was a MARSICO Visiting Scholar at University of Denver, Colorado, USA, in 2011 and a visiting scholar at Cardiff University, Wales, in February 2016.

Katsunori Iha is a research economist, responsible for tracking Ecological Footprints in global supply chains through the use of the multi-regional input-output model, which also applies to sub-national and personal calculator projects. Currently, he is working on developing the computable general equilibrium for Ecological Footprint (CGE-EF) model to assess the impact of different policies on nature. His next project will be building a platform to connect interdisciplinary scholars and leaders in Asian regions that are facing sustainability challenges. He holds an M.S. in economics, specializing in environmental economics, from Okinawa International University, Japan.

Laetitia Mailhes is passionate about bringing complex, critical stories and messages to the world with a view to causing a positive impact. In her role at Global Footprint Network, she focuses on developing strategies, relationships, and content that enhance the accessibility and relevance of the organization’s findings so they can become integrated in the public debate.

Laetitia boasts more than 20 years of experience in journalism, communications, and advocacy work. The Silicon Valley correspondent of the French Financial Times for 10 years, she also had her work published in business magazine Stratégies and French national daily Libération among others. She was also a regular contributor to various radio news programs in France and Switzerland. The co-author of two books about food systems, she has written extensively in English and French about sustainability issues. Her writing has appeared on GreenBiz, Care2, MomsRising.org, and more.

A Sciences-Po Paris graduate, Laetitia earned her M.Litt. in International Security and Conflict Resolution at the University of St. Andrews, Scotland, and her M.A. in International Journalism at City University, London.

Serena first connected with Global Footprint Network in 2010 during the Footprint Forum in Colle di val d’Elsa (Siena), Italy. Since then, she became a passionate Ecological Footprint researcher, focusing her work on resource and natural capital accounting methods, with a particular focus on carbon measurements and the distinction between humans’ use of stock vs. flows of natural capital. As a member of the research team, she contributes to research on the Ecological Footprint methodology and technical publications, as well as to Footprint applications at the national and local scale within a Mediterranean context. Serena holds a Ph.D. in Earth, Environment and Polar Sciences from the University of Siena.

Loredana  Serban manages operations in the Geneva office. She has experience working with nonprofit organizations and the private sector in the areas of finance, operations, and program management. Originally from Romania, Loredana received a master’s in financial management and a BA in economics. She also serves as Treasurer for the Organization of Women in International Trade.

Michelle Shaffer joined the Global Footprint Network team in spring of 2016. Prior to joining the organization, she worked for various arts and environmental nonprofits in New York City, Washington, D.C., and the Bay Area. Born and raised in Maryland, Michelle fell in love with California’s incredible outdoor destinations and put down roots in the Bay Area in 2009.  She holds a BA from Wagner College.

Leopold is a new researcher at Global Footprint Network. Originally from Belgium by way of Brazil and California, Leopold’s passion for the environment comes from his love for cities and transit. With a background in engineering and urban planning, he believes strongly that cities hold the key to a fair and sustainable future. Leopold holds an MS in City and Regional Planning from UC Berkeley and a BS in Environmental Systems Engineering from Stanford.

Robert Williams manages the Global Footprint Network computer network and IT department and is responsible for the computer programming that is required to calculate the National Footprint Accounts. He is also responsible for the design, implementation and maintenance of the database systems, which hold the National Footprint Accounts data. Robert has a broad background in programming, database management and systems administration. He is also the owner of Cosmetto, an information technology (IT) consulting company, that provides custom IT services to small businesses in the Bay Area. Robert has certificates in Java and C++ programming from the University of California, Santa Cruz, and a B.S. in computer information systems (summa cum laude) from Excelsior College.

Rosanna Marie Neil is a Financial Advisor at Chicory Wealth, with a background as an attorney and advocate. Previously, she served as Policy Counsel at the Northwest Atlantic Marine Alliance (NAMA) and helped to lead NAMA’s ocean, fisheries and food policy work. Her advocacy work involved managing relations with congressional offices and collaborating with allies to address a range of issues, including industrial fish farming and economic impacts of fisheries policies on independent fishermen.

Previously, Rosanna directed a nonprofit program called the Sustainable World Initiative, where she was actively involved in advocacy at the United Nations on international environmental policy, and played an influential role in shaping the global development agenda. Earlier in her career, she worked in private practice for several years, specializing in commercial litigation, international trade, international arbitration, and antitrust and competition, while maintaining a robust docket of pro bono cases. She also completed a year-long public interest fellowship at a civil rights organization.

Rosanna earned a Bachelor’s degree in Journalism from Howard University and a J.D. from Harvard Law School. During her legal studies, Rosanna was deeply engaged in international human rights and gained substantial clinical experience, including civil rights advocacy in Argentina, aboriginal rights advocacy in Australia, and anti-apartheid litigation in South Africa.

Susan Burns is co-founder and former Director of Finance for Change at Global Footprint Network. Over the last decade, while serving as CEO, Susan has built Global Footprint Network into one of the leading and most respected scientific organizations in the world addressing global ecological limits. She now leads the Finance for Change Initiative, advising governments and financial institutions on incorporating ecological risk into financial risk analysis and government policy.

Prior to launching Global Footprint Network, Susan founded the pioneering sustainability consulting firm Natural Strategies, advising such companies as Mitsubishi Electric, Genencor, and Lowes. She has over 18 years of experience working with more than 50 corporations and other organizations on a variety of sustainability-related issues from forest policy to business strategy. Susan led the development of the screening methodology for Portfolio 21, the US’s first mutual fund dedicated to environmental sustainability. She has spoken widely on the subject of sustainability, human development, and corporate responsibility, having delivered keynote and other lectures at over 100 national and international events.

In 2007 Susan, along with Mathis Wackernagel, won the Skoll Award on Social Entrepreneurship. She was selected as honorable mention on the en(rich) list identifying the top inspirational individuals whose contributions enrich paths to sustainable futures (www.enrichlist.org). John Elkington identified Susan in 2012 among the “Zeronaut 50” Roll of Honor, i.e., leading pioneers who are driving the world’s most significant problems to zero. Both Susan Burns and Mathis Wackernagel are 2014 ISSP Sustainability Hall of Fame Inductees. Susan holds a B.S. in environmental engineering.

Mathis Wackernagel is co-founder and President of Global Footprint Network. He created the Ecological Footprint with Professor William Rees at the University of British Columbia as part of his Ph.D. in community and regional planning. Mathis also earned a mechanical engineering degree from the Swiss Federal Institute of Technology.

Mathis has worked on sustainability with governments, corporations and international NGOs on six continents and has lectured at more than a hundred universities. He previously served as director of the Sustainability Program at Redefining Progress in Oakland, California, and ran the Centro de Estudios para la Sustentabilidad at Anáhuac University in Xalapa, Mexico. Mathis has authored and contributed to more than 100 peer-reviewed papers, numerous articles, reports and various books on sustainability that focus on embracing resource limits and developing metrics for sustainability, including Our Ecological Footprint: Reducing Human Impact on the Earth; Sharing Nature’s Interest;  Der Footprint: Die Welt neu vermessen; Ecological Footprint: Managing Our Biocapacity Budget; and WWF International’s Living Planet Report.

Mathis’ awards include the 2018 World Sustainability Award, the 2015 IAIA Global Environment Award, being a 2014 ISSP Sustainability Hall of Fame Inductee, the 2013 Prix Nature Swisscanto, 2012 Blue Planet Prize, 2012 Binding Prize for Nature Conservation, the 2012 Kenneth E. Boulding Memorial Award of the International Society for Ecological Economics, the 2011 Zayed International Prize for the Environment (jointly awarded with UNEP), an honorary doctorate from the University of Berne in 2007, a 2007 Skoll Award for Social Entrepreneurship, 2006 WWF Award for Conservation Merit and 2005 Herman Daly Award of the U.S. Society for Ecological Economics. He was also selected as number 19 on the en(rich) list identifying the 100 top inspirational individuals whose contributions enrich paths to sustainable futures (www.enrichlist.org). John Elkington identified Mathis among the “Zeronaut 50” Roll of Honor, i.e., leading pioneers who are driving the world’s most significant problems to zero. From 2011 to 2015, Mathis was also the Frank H. T. Rhodes Class of 1956 Visiting Professor at Cornell University.

As Managing Director, Lewis oversees strategic development, program implementation, and staff management at Hot or Cool Institute. Previously, Lewis has served as Executive Director of SEED, founded as a UN partnership at the 2002 World Summit on Sustainable Development to promote entrepreneurship for sustainable development. Prior to that, he was Director for Sustainable Consumption and Production at the think tank Institute for Global Environmental Strategies.  He has consulted with organizations including United Nations agencies, the Asian and African Development Banks, the European Commission, the Association of Southeast Asian Nations (ASEAN), and has served as technical or science-policy adviser to several national government delegations, including Finland, Japan, Sweden, Indonesia, Hungary. Lewis conceived and led the 1.5-Degree Lifestyles project, analysing potential contribution of lifestyle changes to the aspirational 1.5 °C target under the Paris Agreement on climate change. He co-lead the United Nations One Planet programme on Sustainable Lifestyles and Education. He has an M.Sc. Sustainable Resource Management (Technical University Munich, Germany) and a Ph.D. Political Economy (University of Helsinki, Finland).

Sandra Browne is the Chief Operating Officer of Industrial Logic, Inc. She also served as Global Footprint Network’s COO from 2011 to 2018, where she created HR processes for recruiting and performance management, aided the creation of a revised strategic plan, and implemented systems for tracking operations and finance analytics to enable timely, data-driven decisions.

Sandra has 20 years of experience as a business operations executive for technical and scientific organizations. She earned her MBA from UC Berkeley with an emphasis in organizational behavior and strategy. Throughout her career Sandra has focused on creating high-performance cultures that are financially stable and data-driven.

Prior to working at Footprint Network, Sandra managed company-wide operations for several consulting companies, including a multi-office transportation engineering firm and a global agile software development company. She was also the VP of Engineering for a software consulting firm, where she managed custom software development projects for enterprise clients.

Sandra’s interests include global travel and volleyball. She lives in California with her husband and two children.

Alexa works towards deep systems change through the creation of transformational leadership and learning programs, guiding participants into mindsets of regenerative thinking, collective intelligence and emotional wisdom. As the co-founder of Atlas Unbound, she creates, leads and facilitates immersive experiences into the wilderness in Mexico, guiding CEOs, entrepreneurs, leaders and change-makers in learning and innovating from the wisdom of nature’s systems.

Her professional career spans from the realms of immersive experience design to creative strategy, consulting, storytelling and innovation, specifically applied to sustainability and climate-related projects. Alexa is also a passionate writer, photographer, communicator and strategist, and has hosted several exhibitions of her work curated around themes of nature connection and surrendering to the beauty of the wild. Her focus is on creating inspiring content relating to conservation and the climate crisis.

Ivo Knoepfel advises foundations, individuals and businesses in implementing investment strategies that contribute tangibly to environmental and social impact goals.  In his role as founding partner of advisory firm onValues, he has been a trusted advisor of leading families and institutions for over 20 years, building on his pioneering contributions to the development of sustainable finance in the 1990s and impact investing at the beginning of the century.

As board member of Terra21 Foundation, Global Footprint Network and the Center for Sustainable Finance and Private Wealth at University of Zürich he provides strategic advice in areas as diverse as creating awareness and action for environmental priorities, communicating opportunities in overcoming ecological overshoot, and innovative sustainable finance education.  Climate change has also been a focus area of his work.  As Climate Change Advisor of the Swiss Re Group already in 1995 he held what was probably the first position in the financial sector dedicated to the issue.  He contributed important innovations in sustainable finance by developing the Dow Jones Sustainability Index during his time at Sustainable Asset Management (today part of Robeco) and early impact investing strategies in microfinance during his time at responsAbility Investments AG.

Ivo Knoepfel has led or contributed to a range of collaborative initiatives aimed at strengthening the financial sector’s commitment to sustainability. Notably, he was responsible for coordinating the financial sector’s contribution to the UN Global Compact, and in that role coined the term ESG investing. He was also an advisor to the UN Principles for Responsible Investment in developing guidelines for investments in particularly sensitive areas such as microfinance, commodities and farmland.  He has also contributed to launching Swiss Sustainable Finance and published a large number of reports and articles on sustainable and impact investing.

He holds a Masters and a PhD degree from the Swiss Federal Institute of Technology (ETH) and wrote his PhD thesis on the environmental life-cycle analysis of energy systems.  This was followed by post-graduate studies in environmental law, economics and science at the University of Zurich. He is a certified international investment analyst and Swiss portfolio manager by training and has recently concluded post-graduate studies in applied philosophy that provide new inspiration for his advisory work. He likes to spend time in nature and sailing in the Mediterranean Sea.

Julia Marton-Lefèvre was Director General of IUCN from 2007 to 2015.  Prior positions include Rector of the UN affiliated University for Peace: Director of LEAD International and Director of the International Council for Science.   She currently serves on the boards of NGOs, foundations, universities and corporations, and chairs the Board of Trustees of the Alliance of Bioversity International and CIAT; the Tyler Prize for Environmental Achievement; the Critical Ecosystem Partnership Fund;  the Villars Institute Foundation and the  Strategic Advisory Council to  the French think tank, IDDRI.  The government members of IPBES elected Julia as a member of the IPBES Bureau in 2019.   She has been on the board of ASU’s  Global Institute of Sustainability since its inception, and serves on the Executive Committee of the Global Futures Conference. She lectures regularly on environment & sustainable development topics in various universities including Yale University where she was the Edward P. Bass Distinguished Visiting Scholar in the Environment.

Julia was the recipient of the AAAS Award for International Cooperation in Science, and has been honoure by France as Chevalier de la Légion d’Honneur and as Officier de l’Ordre National de Mérite; by Monaco as  Officier in the  Order  of St Charles; by Korea with a presidential citation, and by Hungary with the Pronatura award.  She received the Lifetime Achievement Award from the Global Council for Science and the Environment.

Julia was born in Hungary, educated in the United States and in France, and having lived in several continents, considers herself a global citizen.