Technical Expert Panel on Carbon Accounting

Marwa Al-Ansary is a global energy executive with over 25 years of experience supporting technology, circularity and decarbonisation initiatives across six countries. She currently advises organisations such as UNESCO and Qatar Foundation and chairs the Carbon Markets and Emissions Reduction Working Group at ICC Qatar. During nearly two decades at Shell, she progressed through senior global leadership roles, contributing to the development of low-carbon technologies and partnerships, including green hydrogen, CCUS, energy storage, Direct Air Capture, and Sustainable Aviation Fuels. She played a key role in shaping carbon abatement and technology strategies, securing government approvals, guiding major energy and startup investments, and contributing to Shell’s carbon frameworks and sustainability operations. She later served as Global Executive Director of the Sustainable Carbon Group, helping advance carbon markets and climate finance solutions. She holds a PhD from the University of Cambridge, an MSc from the University of Strathclyde, and MSc and BSc degrees from the American University in Cairo. 

Maria Atkinson is a globally respected leader in sustainable development and the net zero transition. A scientist turned strategist, she has shaped international climate and built environment frameworks, advised governments and guided investment across real estate, new energy and circular economies. She is best known for translating complex systems into practical, actionable strategies. 

Billy B. Bardin is the Global Energy and Climate Transition Director for Dow. He is accountable for the development of Dow’s strategy to transition to a carbon-neutral future and engages with Dow’s businesses, customers and external stakeholders on efforts to reduce carbon emissions, with a focus on value generation. Bardin leads the Dow Climate Programme Management Office and the executive Climate Steering Team. He has had leadership roles in Research and Development, Operations, and Manufacturing and Engineering in which he led efforts to develop and commercialise technologies. Prior to his current role, Mr Bardin most recently held leadership roles as the global digitalisation director, global operations technology and manufacturing 4.0 director, and R&D director for Feedstocks, Hydrocarbons, Energy, Chemicals and Licensing. Bardin holds a B.S. degree in chemical engineering from North Carolina State University, and a M.S. degree and a Ph.D. in chemical engineering from the University of Virginia. He is a Registered Professional Engineer (PE) with the West Virginia State Board of Registration for Professional Engineers. Bardin was the 2023 President of the American Institute of Chemical Engineers (AIChE) and is a Fellow of the Institute. Mr Bardin is an executive member and past Chair of the Industrial Advisory Board for the School of Chemical Engineering at Purdue University and a member of the advisory boards for the Departments of Chemical Engineering at the University of Virginia and North Carolina State University. He was the founding chair of the RAPID advanced manufacturing institute and is currently chair of the board of directors for the MxD advanced manufacturing institute. 

Alex Cantlay is Head of Carbon Insights at Shell, where he serves as a subject matter expert on climate targets, overseeing the reporting and assurance of Shell’s Net Carbon Intensity and Scope 3 emissions. Alex led the development of the methodology, processes, and systems underpinning Shell’s Net Carbon Intensity metric, a key component of the company’s climate targets. He has also contributed to the development of global standards and guidelines by serving on advisory groups with the Greenhouse Gas Protocol and the Science Based Targets initiative. He holds a PhD in Materials Science from Imperial College London and a BSc in Chemistry from the University of Edinburgh. 

Mr Chatterjee is Executive Director and Chief Financial Officer of Tata Steel Limited and a member of the company’s Board, bringing nearly 30 years of experience within the Tata Group. He joined Tata Steel in 1995 in corporate finance and planning and was appointed Chief Financial Officer in 2004. In 2012, he joined the Board as a Whole-Time Director with global responsibility for the finance function. As CFO, Mr Chatterjee oversees financial stewardship including growth and M&A strategy, financing and balance sheet management, investor relations, enterprise risk management, financial reporting, taxation and sustainable finance. He is a Trustee of the IFRS Foundation and a board member of the World Steel Association. He also serves on global sustainability and sustainable finance platforms, including the UN Global Compact CFO Coalition for the Sustainable Development Goals, and has contributed to international initiatives on climate, nature-related financial disclosures and voluntary carbon markets. 

Dickson Chin is a Partner at Jones Day with decades of experience representing leading corporates, financial institutions and market infrastructure providers in complex global energy and carbon market transactions. His practice is best known for structuring innovative power and environmental attribute transactions and designing standardised contracting frameworks for renewable energy and carbon products. He possesses distinctive experience in establishing global industry standards, having served as lead counsel to the International Swaps and Derivatives Association (ISDA) for the preparation of the Global Financial Power Purchase Agreement (FPPA) Confirmation Template, the US Renewable Energy Certificate (REC) Annex, and the EU Guarantees of Origin (GO) Annex. Dickson is a recognised thought leader on decarbonisation contracting and the role of carbon intensity in mobilising investment for low-carbon supply chains. He is a recipient of an Innovation Award from the New York Law Journal and has been named a Northeast Trailblazer by The American Lawyer. 

Jon Creyts is the Chief Executive Officer Rocky Mountain Institute (RMI). He is an internationally recognised leader on global energy issues and climate change. Since joining the organisation in 2012, he has helped grow RMI more than ten-fold and expanded its footprint to over 50 countries, becoming CEO in 2022. He has worked extensively on accounting and carbon market issues throughout his career, and served on the expert panel that created the Integrity Council for the Voluntary Carbon Market. Prior to joining RMI, he was a partner with McKinsey & Company and a design engineer in the power and aviation industries. Jon is an alumnus of Lockheed Martin’s renowned Skunk Works and received his Ph.D. from the University of California, Berkeley.   

Kebin He is Dean of the Institute for Carbon Neutrality and professor of the School of Environment at Tsinghua University. He is a member of the Chinese Academy of Engineering, serving as its Presidium Member and Director of Environment and Light and Textile Industries Engineering Division. He also serves as the Deputy Chair of the National Expert Committee for Ecology and Environmental Protection, and as Chair of the National Teaching Steering Committee for Environmental Science and Engineering. He is a respected and influential expert on China’s air pollution control, carbon neutrality and energy transition issues. His research focuses on the identification of particulate matters and complex air pollution, complicated emission sources, as well as multi-pollutant control and the coordinated control of air pollution and greenhouse gas emissions. He was listed as Highly Cited Chinese Researchers (2014-2025) and Highly Cited Researchers (2018-2025) by Clarivate Analytics. 

Mr Hoshino, known as Todd, is Executive Strategist at Mitsui & Co. where he advances the company’s multi-clean fuels and materials strategy. Since joining Mitsui in 1994, he has built a global career across the chemicals value chain, with senior leadership roles in Tokyo and Singapore and overseas assignments in Thailand, the United States and Singapore. He has led M&A transactions, established joint ventures and overseen greenfield projects and capacity expansions worldwide. Mr Hoshino has also contributed to public policy, serving on expert committees for Japan’s Ministry of Economy, Trade and Industry and the Ministry of Land, Infrastructure, Transport and Tourism. He currently participates in clean fuels and materials expert groups with the International Energy Agency and the World Economic Forum. 

Mr Knors is a senior engineering and operations leader with more than 35 years of experience at Bayer, where he has built and led high-performing global organisations across engineering, technology, procurement and product supply. He began his career as a trained mechanic in production while pursuing academic studies, later earning a PhD in Mechanical Engineering. Mr Knors has held senior leadership roles across agrochemicals, fine chemicals, polymers and pharmaceuticals, with full P&L and large-scale capital investment responsibility. As Head of Engineering and Technology at Bayer, he led a global organisation of hundreds of engineers, managed multi-billion-euro investment portfolios and advanced the deployment of process engineering, digitalisation, data science and AI. With over a decade of professional experience in Asia, including building Bayer’s engineering organisation in China, he brings strong cross-cultural insight and a proven track record in organisational transformation and talent development.   

Natasha is currently a Partner and Head of Stewardship at the asset manager Sarasin & Partners LLP, where she steers the firm’s stewardship work, ensuring effective engagement, voting and public policy outreach to promote the creation of sustainable value. Since 2017, she has spearheaded Sarasin’s flagship Climate Active strategy. 

Natasha has been a long-standing advocate for reform of the accounting and audit system to promote long-term stewardship, as well as action by company boards to confront climate change. Natasha is a member of the Stakeholder Advisory Council for the International Audit and Assurance Standards Board and the International Ethics Standards Board for Accountants. Natasha sits on the Investment Committee for the Cambridge Assistants Contributory Pension Scheme and is a non-executive director at Tracker Group, a leading think-tank on aligning investment with a climate resilient and nature positive future. 

Natasha started her career as an Overseas Development Institute Fellow, working as the Chief Economist in the Guyana Forestry Commission, and subsequently working on sustainable development issues in Asia, Africa and Latin America. 

Natasha has a BA and MA in Economics from Cambridge University; MSc in Natural Resource and Environmental Economics from University College London and is a CFA® charterholder.  

Hoesung Lee is President of the Carbon Free Alliance (CFA) and former Chair of the Intergovernmental Panel on Climate Change (IPCC). At CFA, he leads initiatives to accelerate global decarbonisation by advancing technology-neutral solutions, with a focus on globally harmonised standards and certification for carbon-free energy. He served as IPCC Chair (2015–2023), overseeing the Sixth Assessment Report, which informed the Paris Agreement’s first Global Stocktake. He has held senior roles across government, academia and international institutions. His work focuses on climate policy, energy economics, and aligning decarbonisation with energy security and industrial competitiveness. He has been recognised by TIME’s 100 Most Influential People and Bloomberg’s 50. 

Ms Luers is Head of Sustainability and Innovation at Microsoft, where she leads work at the intersection of sustainability, science and artificial intelligence, helping shape the company’s strategies, investments and policies to advance global sustainability. Previously, she served as Executive Director of Future Earth; Assistant Director for Climate Resilience and Information at the White House Office of Science and Technology Policy; Director of Climate at the Skoll Global Threats Fund; and Senior Environment Manager at Google. Earlier in her career, she founded Agua Para La Vida, a non-profit working with rural communities in Latin America to improve access to clean water. Ms Luers serves on multiple advisory boards and is a member of the Council on Foreign Relations and the National Academies of Sciences Roundtable on AI and Climate Change.    

Ms Maher is Professor of Earth System Science at Stanford University, where her research focuses on the science, measurement and policy-relevant implications of carbon dioxide removal and storage across engineered and natural systems. Her work draws on more than 100 peer-reviewed publications spanning the global carbon cycle, ecosystem-scale carbon balances and subsurface carbon storage. Integrating computational modelling, reactive transport and data-science methods, Ms Maher examines how carbon and water move, transform and are retained across Earth systems. Her research has informed academic, policy and applied discussions on carbon accounting, permanence and the physical requirements for credible net-zero frameworks. 

Phuthuma Nhleko was, until March 2011, group CEO of MTN, at the time the sixth largest company on the Johannesburg Stock Exchange (JSE) by market capitalisation and the largest company with a primary listing in South Africa. 

During his 10-year leadership tenure at MTN from 2002 to 2011, he transformed the company, driving its exponential growth through significant expansion covering 21 countries in Africa and the Middle East, and serving over 240 million online customers. In May 2013, he returned as MTN Group Chairman and served until December 2019.  

His previous directorships include BP Plc, Anglo American Plc, the Nedbank Group, Old Mutual SA, Johnnic Holdings, the Bidvest Group and Alexander Forbes. He was a Chairman of Tullow Oil Plc. He holds a BSc in Civil Engineering from Ohio State University and a Master of Business Administration from Atlanta University (renamed Clark Atlanta University). He is a Fellow of University of Oxford, Blavatnik School of Government and Public Policy. 

He is the Chairman and co-founder of Phembani Group a South African domiciled resource and energy-focused investment holding company that has a significant interest inter alia in downstream retailer Engen in partnership with Vitol, a Swiss-based Dutch multinational energy and commodity trading company. Phembani Group has JV partnerships with Glencore and Sibanye-Still Water in coal and platinum resources, respectively. 

He is also the Chairman of Pembani Remgro Infrastructure Fund (PRIF) that invests in infrastructure projects on the African continent, Chairman of the Johannesburg Stock Exchange (JSE), Director of IHS Towers. 

Phuthuma Nhleko is the author of The Invisible People: How A Quarter of Humanity Can Thrive In Africa by 2050. 

Natasha has been a long-standing advocate for reform of the accounting and audit system to promote long-term stewardship, as well as action by company boards to confront climate change. Natasha is a member of the Stakeholder Advisory Council for the International Audit and Assurance Standards Board and the International Ethics Standards Board for Accountants. Natasha sits on the Investment Committee for the Cambridge Assistants Contributory Pension Scheme and is a non-executive director at Tracker Group, a leading think-tank on aligning investment with a climate resilient and nature positive future. 

Natasha started her career as an Overseas Development Institute Fellow, working as the Chief Economist in the Guyana Forestry Commission, and subsequently working on sustainable development issues in Asia, Africa and Latin America. 

Natasha has a BA and MA in Economics from Cambridge University; MSc in Natural Resource and Environmental Economics from University College London and is a CFA® charterholder.  

Noim Uddin is Project Development and Technical Lead at the Regional Pacific Nationally Determined Contributions (NDC) Hub, hosted by the Pacific Community (SPC). He is a climate change and sustainable energy professional with over 15 years of experience working at the intersection of climate policy, sustainable development and low-emission energy transitions. His work focuses on developing strategies, policies and institutional frameworks that support countries in addressing climate change while advancing sustainable development priorities. 

Noim has extensive expertise in greenhouse gas (GHG) management, climate transparency, and institutional arrangements for effective GHG reporting systems. He has supported national governments, businesses and industries in strengthening climate reporting systems, improving data management processes and meeting international climate reporting requirements under the Paris Agreement. His experience also includes facilitating capacity building and technical assistance for developing countries to strengthen climate governance and transparency frameworks. In addition, Noim works on issues related to carbon markets, climate finance readiness and clean energy pathways. 

As an ERM Brazil Expert Advisor (since 2018) Braulio Pikman provides specialist technical services for companies in the public and private sectors (petroleum and petrochemical, metal and mining, steel mills, agriculture – including soil and livestock management – biofuels and biomass production and use, among others). He develops methodological approaches focused on integrating energy efficiency, product sustainability and climate resilience considerations into their businesses, as well as project-level analysis including alignment and consistency with the expectations of international standards and national regulations including carbon accounting, carbon footprint and Life Cycle Assessment. Mr Pikman works with UNFCCC as expert reviewer of national inventories and as a member of the Paris Agreement Crediting Mechanism (Article 6.4) Methodologies Expert Panel. He is also part of the steering and regulatory committees of the Global Carbon Council and contributed to multiple WBCSD/GHG Protocol publications. 

Mr Pizer is President and CEO of Resources for the Future (RFF), an independent, non-profit research institution advancing environmental, energy and natural resource decision-making through economic research and policy engagement. He previously served as Susan B. King Professor and Senior Associate Dean at Duke University’s Sanford School of Public Policy and was Deputy Assistant Secretary for Environment and Energy at the US Department of the Treasury from 2008 to 2011. Mr Pizer has held senior roles across government, academia and policy institutions, including as a Fellow at RFF, senior economist on the President’s Council of Economic Advisers and contributor to the Intergovernmental Panel on Climate Change. His research focuses on the design of net-zero climate policies, their economic impacts and international policy coordination. He has published more than 80 peer-reviewed articles and holds degrees from Harvard University and the University of North Carolina at Chapel Hill. 

Mr Plümper leads the ESG Portfolio Management team at Santander Corporate and Investment Bank, where he supports the calculation of financed emissions, progress towards alignment targets and internal, external and regulatory ESG reporting. Based in Madrid, he has been with Santander since 2009, holding roles across strategy, finance and accounting. Prior to joining Santander, he was an Associate Principal at McKinsey. Mr Plümper holds a PhD in Physics from the University of Hamburg and a diploma degree in Physics from the University of Karlsruhe.   

Peter Saling, is Director of Sustainability Methods at BASF. He is a chemist and received his PhD from the University of Göttingen. In 1993, he joined BASF and started his work in sustainability developing the Eco-Efficiency Analysis in 1997. He has since been involved in conducting more than 600 life cycle assessments and eco-efficiency studies, and from 2007 to 2013 he led the Eco-Efficiency Analysis group in BASF where he was responsible for developing several sustainability assessment methods. Since 2014, he has been the Chairman of the Life Cycle Thinking and Sustainability Group of Plastics Europe and is an editor for the International Journal of Life Cycle Assessment. From 2017 to 2025, he was Chairman of the ISO Committee TC 207 / SC5, and since 2021 has served as Chairman of the German Mirror Committee for LCA.  At Together for Sustainability (TfS), he has been responsible as Co-Chair since 2021 for developing methodological guidelines for PCF assessment and for the Sustainability Guideline in the ChemX-project. 

Since 2014, he has been a board member of the PRISMA Center at the Technical University of Dresden and since 2021, he has been Honorary Professor of Sustainability Management at the Technical University of Dresden. 

Noim has extensive expertise in greenhouse gas (GHG) management, climate transparency, and institutional arrangements for effective GHG reporting systems. He has supported national governments, businesses and industries in strengthening climate reporting systems, improving data management processes and meeting international climate reporting requirements under the Paris Agreement. His experience also includes facilitating capacity building and technical assistance for developing countries to strengthen climate governance and transparency frameworks. In addition, Noim works on issues related to carbon markets, climate finance readiness and clean energy pathways. 

Ms Seiger builds solutions at the intersection of climate science, technology, policy and finance. She is a Visiting Scholar at the Stanford Doerr School of Sustainability and directs the climate programme at the Chan Zuckerberg Initiative. Previously, she led sustainability and energy finance initiatives across Stanford’s Law, Business and Sustainability schools. Ms Seiger has served as Co-Chair of California’s Climate-related Risk Disclosure Advisory Group and as a member of New York State’s Decarbonisation Advisory Panel. She has built and co-founded climate finance and carbon market ventures, serves on the boards of Prime Coalition and the E-ledger Institute, and is an ex-officio member of the National Academy of Sciences Roundtable on Artificial Intelligence and Climate Change. She is the author of Settling Climate Accounts: Navigating the Road to Net Zero and holds a BA from Duke University and an MBA from Stanford Graduate School of Business. 

Mr Stausholm is a Fellow at the Blavatnik School of Government, University of Oxford, and former Chief Executive Officer of Rio Tinto, one of the world’s largest mining and metals companies. During his tenure as CEO, he led the company’s strategic focus on operational performance, governance, sustainability and long-term value creation, including efforts to strengthen climate and ESG integration across the business. Prior to joining Rio Tinto, Mr Stausholm held senior leadership roles in global industrial and financial organisations, bringing deep experience in corporate governance, capital allocation and large-scale international operations.    

Vijay Swarup is retired having worked for Exxon Mobil for over 35 years. Over his career, he held a variety of leadership roles in both business and technology functions. From 2014-2022, he headed the research and development team, overseeing a research portfolio that focused on groundbreaking initiatives in biofuels, carbon capture, direct air capture and hydrogen. 

In his final role with Exxon Mobil, he led the corporation’s strategy to reduce greenhouse gas emissions while meeting increasing energy demand. This included climate policy and advocacy initiatives, along with the interplay between policy and the advancement and implementation of technology. 

Vijay previously served on Advisory Boards for the MIT Energy Initiative, Singapore Energy Center, Princeton Andlinger Center for Energy and Environment, and India International Think Tank for Energy. He was also a member on The National Academies of Science, Energy and Medicine Board on Chemical Sciences and Technology. 

Vijay has BS degrees in chemical engineering and chemistry from Purdue University and a PhD in chemical engineering from Rutgers University. 

Ms Teo is Head of Asia Climate Change at a private family office, where she leads the deployment of philanthropic and commercial capital into decarbonisation solutions across Asia. Based in Singapore, she joined the family office in 2023 after an 18-year career at GIC, where she served as Head of Sustainability and Total Portfolio Sustainable Investing, working closely with clients, the board and internal stakeholders to advance long-term sustainable investing and integrate sustainability across the investment organisation. Earlier in her career, she worked in GIC’s asset allocation team on long-term thematic research and global macro strategy and spent eight years at the Monetary Authority of Singapore in economics research and monetary management roles. Ms Teo was named one of the Top 50 Women in Investment Management by Institutional Investor in 2021 and holds a first-class honours degree in Economics from the National University of Singapore and a master’s degree from the University of Warwick. 

Connor Raso joined Carbon Measures in January 2026 after more than 15 years shaping the development and implementation of financial regulatory standards. He brings deep expertise across auditing, corporate governance, regulatory practice, and carbon accounting. Most recently, he served as Acting General Counsel of the Public Company Accounting Oversight Board, where he led a 30-attorney team and advised on complex standard-setting initiatives. His work focused on building durable legal frameworks – particularly around data governance and regulatory integrity. Connor has also held senior legal roles at the US Securities and Exchange Commission and the Consumer Financial Protection Bureau. Connor is an active member of the American Law Institute, has long served as an adjunct law professor and has been a frequent contributor to the Brookings Institution’s work on the regulatory process.

Guillaume De Smedt is Deputy VP, Group Sustainability for Air Liquide, in charge of sustainability strategy, with a specific focus on climate mitigation and adaptation. In this capacity he leads the design and implementation of the climate transition plan and delivery of climate objectives. Guillaume joined Air Liquide in 2003 to develop the CCS activities in R&D. He then held several positions in operations and business lines, covering the energy and climate fields which included energy management, gas and power sourcing, CO2 quotas management, energy risk management in operations and for large capital investments. Before joining the Sustainability team in 2020 he was in charge of Energy Transition strategy, also acting as chair of the study task force for the Hydrogen Council. Guillaume graduated from Ecole Polytechnique and holds a PhD in theoretical physics.