Our Purpose
Jeremy Tamanini is a thought leader and consultant in the global sustainability space with over a decade of experience leading projects in collaboration with public, private sector, and intergovernmental partners. He started this work by creating the Global Green Economy Index™ (GGEI), the first and leading measure of country-level green performance. The GGEI has been used by numerous partners to create bespoke green performance frameworks, as well as generating over 250,000 downloads, 100+ media & academic citations, and usage in 100+ governments, institutions, and private firms.
In 2025, he is leading research into applied AI for sustainability. This work focuses on identifying key “AI touchpoints” across enterprises including scope 1, 2 and 3 emissions, carbon reporting, product development, waste management, nature, and forward looking R&D. In parallel to this he is a member of the P7100 working group at the IEEE, working towards formulating one of the first global standards covering the environmental impacts of AI systems. More results from these efforts will be shared in the fall of 2025.
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People
The Dual Citizen LLC practice was founded by Jeremy Tamanini and supported by a team of strategic advisors.
Jeremy Tamanini
Founder
Jeremy Tamanini
Jeremy Tamanini is the founder and lead consultant at Dual Citizen. Since founding the practice, he has worked in over 30 countries on engagements linking data analytics, green growth and sustainable development. He created the Global Green Economy Index™ (GGEI), now the leading measure of national green performance covering 160 markets and utilized by policymakers, ESG investors, and academics worldwide.
Jeremy started his career in the private sector at an Internet start-up and then as Director of Marketing at Armani Group. His passion for global policy and development issues led to a Fulbright fellowship to conduct a project in the United Arab Emirates. His research there explored the interaction of place branding and economic development in Dubai through engaging with local government officials, while based in Dubai Media City.
Dual Citizen works with clients including government agencies, NGOs, international organizations and private firms. Recent clients include the Pacific Islands Development Forum (PIDF), UNDP Accelerator Labs, Institut de la Francophonie pour le Devéloppement Durable (IFDD), World Bank (Trade & Competitiveness Unit), Green Growth Knowledge Platform (UN Environment), U.S. Department of State (USAID), International Finance Corporation (Doing Business, Global Indicators Group), the Middle East Policy Council, The Conference Board of Canada, Yale University (School of Forestry & Environmental Studies), government of Denmark (State of Green), and the government of Italy (Fondazione per lo sviluppo sostenibile, Stati Generali della Green Economy).
Jeremy is a graduate with distinction from Georgetown’s School of Foreign Service with a Master’s degree in Foreign Policy and an Honor’s certificate in International Business Diplomacy. He holds a Bachelor’s degree in Urban Studies and Economics from Columbia University. Learn more about Jeremy’s background here or contact him here.
Andrea Bassi
Strategic Advisor
Andrea Bassi
Dr. Andrea Bassi is the founder and CEO of KnowlEdge Srl (Italy) and an Extraordinary Professor at Stellenbosch University (South Africa). Andrea is a project leader and researcher, applying modeling and research techniques that focus on systemic analysis. He has supported more than 30 governments & several international organizations primarily on green economy strategies & scenarios, climate mitigation & adaptation and sustainable development. He holds a Ph.D. and M.Phil. in System Dynamics (University of Bergen, Norway) and a M.Sc. in Business and Economics (LIUC, Italy). Andrea is the author (with Gilbert Probst) of Tackling Complexity, A Systemic Approach for Decision Makers. Andrea led a strategic review of the Global Green Economy Index™ (GGEI), evaluating its market positioning, methodology, data references and measurement approach. Learn more about Andrea’s professional background here.
Karuna Ramakrishnan
Strategic Advisor
Karuna Ramakrishnan
Karuna Ramakrishnan currently works as a Public Policy Manager at Amazon. Prior to this, she worked for nearly a decade at the World Bank in Washington DC and Singapore, serving clients in East Asia, Africa and South Asia, in countries as diverse as Afghanistan and Myanmar to Malaysia and Singapore. Prior to joining the World Bank, Karuna worked at consulting firms such as IHS Markit, and Sandler, Travis and Rosenberg on trade policy. In India, she produced CNBC’s prime time news programming, and started a social enterprise which produced organic fertilizer to pay for the upkeep of an animal shelter. Karuna has an MS in Foreign Service from Georgetown University, and a certificate in Artificial Intelligence and Business Strategy from MIT’s Sloan School of Management. Learn more about Karuna’s professional background here.
Marcus Andersson
Strategic Advisor
Marcus Andersson
Marcus Andersson is a strategy and communications adviser, writer and entrepreneur. He is a co-founder and Chairman of the Board of Future Place Leadership, a leading Scandinavian consultancy specializing in the attractiveness, branding and innovation of places. Marcus has worked for several international organizations – including the European Commission and the Swedish Government – on communications and project management in policy areas such as innovation and entrepreneurship, green growth and sustainable development, as well as marketing. He holds an M.A. in Political Science (Uppsala University) and an MSc. in Marketing, Business and Economics (Stockholm University, School of Business). He is also a trained intelligence analyst and has worked as a case officer for the Swedish Security Service. He has published a range of papers, articles, reports and handbooks on topics such as talent attraction, cluster development, supranational place branding and investment promotion. Dual Citizen supported Marcus’ client work on the Strategic Global Marketing of Nordic Cleantech Clusters & Competencies and producing a case study on talent attraction and retention in Austin, Texas. Contact Marcus here.
Steve Hamilton
Strategic Advisor
Steve Hamilton
Steve Hamilton is a Senior Manager at Deloitte Transactions and Business Analytics LLP in the Emerging Markets Practice based in Washington, DC. Steve has more than 10 years of experience providing market, economic, strategic planning, and transactions support for large-scale economic development and infrastructure projects worldwide, including Special Economic Zones, ports, airports, and new city developments. He has worked in over 15 countries in Africa, Asia, the Middle East, and Latin America for multilateral development banks, private real estate developers/operators, and government clients. Steve is focused on developing and deploying new evidence-based solutions that support informed decision making by city leaders, citizens, and stakeholders around economic and social development opportunities and challenges. These solutions employ data analytics and new media tools that enable greater citizen participation in strategic planning. Prior to joining Deloitte, Steve was a Project Manager at AECOM, a leading global Fortune 500 design, planning, and engineering company. Steve received his MA from Georgetown University’s Graduate School of Foreign Service and his BA from the University of Virginia. Learn more about Steve’s professional background here and contact Steve here.
Consulting
As a “solopreneur,” Jeremy Tamanini’s role is to provide context, insight and advisory services to partners looking to employ data and applied AI to advance sustainable practices.
Having worked this way for over a decade in more than 30 markets internationally, there really is no one-size fits all description of what these engagements look like. One of the values of working in this manner is that Jeremy can partner on a diverse range of assignments in many different configurations. Connect with Jeremy on LinkedIn to learn more about his work.
Over a decade ago, Jeremy created the Global Green Economy Index™ (GGEI), the first framework for measuring and tracking national performance in the green economy. The GGEI generates data and can also be an entry point to more tailored consulting engagements, designed to look deeper at issues touched upon in the GGEI, but requiring further geographic localization, market sensitivity, or sectoral specificity.
As new AI systems intersect with sustainability, Jeremy has started to work on research and capacity building in this arena. In September 2025, he released the first in a series of papers on the topic “Applied AI for Sustainability: Opportunities for Integration.” Access the paper here. If you are a company or organization interested in exploring how to best integrate these new AI tools to your overall sustainability strategy, contact Jeremy here.