SUP Volume III: What the Latest Science on Climate Change Mitigation Means For Cities and Urban Areas

The Summary for Urban Policymakers (SUP) Volume III focuses on climate change mitigation in cities and urban areas. Drawing on latest research, this volume synthesizes key findings of the IPCC Working Group III Report for urban policy makers. Cities and urban areas offer significant opportunities for reducing emissions through a range of mitigation options such as low-emissions transport, energy-efficient buildings, or enhanced carbon storage using nature. Ambitious urban policies that forefront well-designed and effectively implemented mitigation interventions also hold co-benefits for adaptation and sustainable development goals.

Click here to watch a derivative video summarizing the key messages from the SUP Volume III.

Author Team

Paolo Bertoldi
Lead Author, Chapter 9, IPCC AR6 WGIII, Lead Author, Chapter 4, IPCC SR15

Senior Expert – European Commission

Paolo Bertoldi is a senior expert in sustainable energy, climate change and energy efficiency at the European Commission.
Some of his key areas of expertise include: Energy Service Companies, market based instruments, governance, environmental leadership, ICT energy consumption.

Experienced Editor In Chief with a demonstrated history of working in the international affairs industry. Bertoldi is also skilled in sustainable energy, Corporate Social Responsibility, International Relations, and data centre, and is in charge of policy analysis for energy efficiency at the European Commission where he has served as Energy Efficiency Expert and Senior Expert for a total of 26 years. He has an engineering degree focused in energy systems and electrical system from University of Padova, Italy.

Felix Creutzig
Coordinating Lead Author, Chapter 5, IPCC AR6 WGIII

Head of working group Land Use, Infrastructure and Transport – Mercator Research Institute on Global Commons and Climate Change

Prof. Dr. Felix Creutzig is head of the working group Land Use, Infrastructures and Transport and Chair of Sustainability Economics at Technische Universität Berlin. He was lead author of the IPCC’s Fifth Assessment Report and lead analyst of the Global Energy Assessment. His research focuses on: Conceptualizing and quantifying GHG emissions of cities world-wide; Assessing opportunities for GHG mitigation of cities world-wide; Building models of sustainable urban form and transport; Land rents as a complement for financing sustainable infrastructures; Analyzing the role of capital stocks and infrastructures for climate change mitigation; Land use-mediated uncertainty in integrated assessments, particularly those related to bioenergy.

Before joining the MCC and TU Berlin, Felix was a postdoc fellow at the Energy and Resources Group at the University of California, Berkeley, collaborating with Dan Kammen, Lee Schipper and Elizabeth Deakin, and the Energy Foundation China in Beijing. Felix Creutzig received his PhD in Computational Neuroscience from Humboldt-Universität zu Berlin, and holds a Master of Advanced Studies (Path III in Mathematics) from Cambridge University, UK. From 2009 until 2011 Felix was also chair of Netzwerk Europa, the Alumni organization of the Studienkolleg zu Berlin.

Friederike Otto
Lead Author, Chapter 11, IPCC AR6 WGI

Professor – Eindhoven University of Technology

Heleen de Coninck is a full Professor of Socio-Technical Innovation and Climate Change at Eindhoven University of Technology since 2020, and an Associate Professor in Innovation Studies and Sustainability at the Department of Environmental Science at Radboud University Nijmegen’s Faculty of Science since 2012. As a researcher, Heleen’s main research focus is on the role of innovation and technology in the international climate negotiations, on policy for making energy-intensive industry climate-neutral, and on the viability and societal dynamics of new technologies for 1.5C-mitigation pathways. Heleen graduated in Chemistry and in Environmental Science at Radboud University in Nijmegen, specialising in climate change and atmospheric chemistry. After her studies, she worked as atmospheric chemistry researcher at the Max Planck Institute for Chemistry in Mainz, Germany. Before joining academia in 2012, Heleen worked at the Energy Research Centre of the Netherlands (ECN), the largest energy research institute in the country, for over 10 years. There, she worked on international climate policy, rural electrification, the Clean Development Mechanism, Carbon Capture and Storage (CCS), capacity building in developing countries, and policy studies. In 2009, Heleen finished a PhD, which she conducted alongside her work at ECN, on technology in the international climate regime, at the VU University Amsterdam, in collaboration with Princeton University in the United States.

Kiane De Kleijne
Chapter Scientist, Chapter 12, IPCC AR6 WGIII

PhD Student – Radboud University

Kiane de Kleijne is a chapter scientist and contributing author in Chapter 4 of the IPCC Special Report on Global Warming of 1.5˚C (SR1.5) and in Chapter 12 of the IPCC Working Group 3’s contribution to AR6, as well as a lead author in the Summary for Urban Policymakers of SR1.5. Kiane is a PhD student at the Department of Environmental Science at Radboud University in The Netherlands. Her research focuses on the environmental impacts and benefits of mitigation technologies in the industrial and energy sectors, for example CO2 capture and utilisation, and green hydrogen.

Shobhakar Dhakal
Coordinating Lead Author, Chapter 2, IPCC AR6 WGIII

Vice President for Academic Affairs – Asian Institute of Technology

Shobhakar Dhakal is the Vice President for Academic Affairs at the Asian Institute of Technology, Thailand since April 2021. In the past, he was Dean of the School of Environment, Resources and Development, and Head of the Department of Energy Environment and Climate Change of the Asian Institute of Technology. His main areas of expertise are in energy policy, climate change mitigation and policies, policy modelling and analysis, and cities and climate change. Dhakal was the Coordinating Lead Author of the Nobel Prize-winning Intergovernmental Panel on Climate Change’s 5th Assessment Report for the Chapter on Human Settlements, Infrastructure and Spatial Planning, and 6th Assessment Report for the Chapter on Emissions Trends and Drivers. He was also a member of the author group that developed a recent UNEP led global scientific assessment titled Making Peace with Nature, launched by UN Secretary-General and UNEP Executive Director in February 2021, led by Bob Watson and Ivar Andreas Baste.

Kejun Jiang
Lead Author, Chapter 3, IPCC AR6 WGIII Report; Coordinating Lead Author, Chapter 2, IPCC SR15

Senior Researcher – Energy Research Institute

Since 1993, Kejun Jiang has been conducting research on climate change relative to energy policy analysis, with a focus on energy technology policy assessment, energy supply policy assessment, renewable energy development and energy conservation. In 1994 he began working on Integrated Assessment Model development for energy and GHG emission scenarios and policies, focusing on China and global analysis. At present he is mainly working on energy and environmental policy assessments by leading the Integrated Policy Assessment Model for China (IPAC) team. Additional areas of research include energy and emission scenarios, energy policy, energy systems, energy market analysis, climate change, local environment policies and international negotiation. Since 1997, Kejun Jiang has been working with the IPCC, including for Special Report on Emission Scenario and Working Group III Third Assessment Report, lead author for IPCC WGIII AR4 Chapter 3, and leader author for GEO-4 Chapter 2. He is now CLA in WGIII of IPCC AR5, LA for IPCC AR5 Synthesis Report, and author for UNEP Emission Gaps. His recent research projects include energy and emission scenarios for 2030, low carbon emission scenarios up to 2050, assessments on energy tax and fuel tax, potential for energy targets in China, and development of Integrated Policy Assessment models. Kejun Jiang received his Ph.D. from the Social Engineering Department of Tokyo Institute of Technology.

Şiir Kılkış
Lead Author, Chapter 8, IPCC AR6 WGIII Report

Senior Researcher – The Scientific and Technological Research Council of Turkey (TÜBİTAK)

Şiir Kılkış is alumna of KTH Royal Institute of Technology and Georgetown University, where she graduated magna cum laude with honors as the gold medalist in Science, Technology, and International Affairs. She served as Lead Author in the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report Working Group III on Mitigation of Climate Change for “Urban Systems and Other Settlements.” She is an author of the Summary for Policymakers and Technical Summary, Cross-Working Group box on Cities and Climate Change, and various chapters.

Her focus includes urban emissions scenarios in the context of the SSP-RCP framework, mitigation options for urban systems, their SDG linkages, multi-dimensional feasibility assessment and opportunities for shifting development pathways towards sustainability. She is Senior Researcher at The Scientific and Technological Research Council of Turkey (TÜBİTAK) and scientific advisor on climate change mitigation and adaptation. As Associate Professor in Energy Systems Engineering, she is coordinator of sustainable development and sustainable urban systems in the Earth System Science Graduate Program of Middle East Technical University. She is a member of the Earth Commission Working Group on Translation and Methods and Steering Committee member of the Future Earth Urban Knowledge Action Network. Based on her research work, she takes place among the top 2% scientists in the areas of energy, environmental science, and emerging/strategic technologies and is an International Scientific Committee member of the SDEWES Center.

Her research accomplishments include the SDEWES Index benchmarking 120 cities, SSP1 based scenarios for 420 urban areas around the world, the Rational Exergy Management Model to curb CO₂ emissions, and novel net-zero district concepts. She is an editorial board member of The Journal of Sustainable Development of Energy, Water & Environment Systems, Smart Energy, Energy Storage and Saving as well as Guest Editor in Energy Conversion and Management and Frontiers in Sustainable Cities.

Shuaib Lwasa
Coordinating Lead Author, Chapter 8, IPCC AR6 WGIII Report; Lead Author, Chapter 6, IPCC SRCCL

Dr. Shuaib Lwasa is a principal researcher on adaptation, governance and transformation at the Global Center on Adaptation. Shuaib has over 22 years of experience in university teaching and research as Professor of Urban Sustainability at Makerere University, Uganda. He has worked extensively on interdisciplinary research projects focused on African cities but also in South Asia. His publications are in the areas of urban mitigation of and adaptation to climate change, urban environmental management, spatial planning, and disaster risk reduction, urban sustainability. Shuaib is a Coordinating Lead Author of the IPCC WG III Chapter 8 “Urban Systems and Human Settlements” and Lead Author for the IPCC Special report on Land and Climate Change. He is the Past-Chair of the interdisciplinary research programme on Integrated Research on Disaster Risk.

Minal Pathak
Chapter Scientist and Contributing Author, Chapter 5, IPCC AR6 WGIII Report

Senior Scientist – Ahmedabad University

Professor Pathak holds a PhD and MS in Environmental Science. She is a Visiting Researcher at Imperial College London and has held visiting scholar positions at the Department of Urban Studies and Planning, Massachusetts Institute of Technology and Universiti Teknologi Malaysia, Johor Bahru.

From 2016-17, she was Associate Professor and Head of the Doctoral Program at CEPT University, Ahmedabad and Assistant Professor at CEPT University from 2011-2016. She was a drafting author on the IPCC Special Report on Global Warming of 1.5°C and the IPCC Special Report on Climate Change and Land. Her publications focus on low carbon scenarios for India, demand-side mitigation actions and their interlinkages with SDGs.

Joana Portugal Pereira
Lead Author, Chapter 4; Coordinating Lead Author, Annex C IPCC AR6 WGIII Report

Assistant Professor – Federal University of Rio de Janeiro

Joana Portugal-Pereira is an Assistant Professor in the Federal University of Rio de Janeiro (UFRJ/COPPE) at the department of Energy Planning. She is a Visiting Fellow at the Centre for Environmental Policy of Imperial College London and a Visiting Professor at the University of Lisbon.

Her research interests focus on energy system innovations towards mitigation of global and local environmental impacts. She has a vast experience in developing environmental modelling tools to better understand the economic and environmental co-benefits of low carbon energy portfolios and to deliver policy recommendations.

She has collaborated in several international projects with industrial business and policy-maker actors and international organisations and developed work in Asia-Pacific and Latin America and Caribbean regions. She has developed work on energy and climate policy for the United Nations Institute of Advanced Studies (UNU-IAS, Japan), the Asian Development Bank (ADB, Japan), the International Renewable Energy Agency (IRENA), the Global Environmental Facility (GEF), the EC Horizon 2020, UK Natural Environment Research Council (NERC) and UK Department of Energy and Climate Change (DECC).

Joyashree Roy
Lead Author, Chapter 4; Coordinating Lead Author, Annex C IPCC AR6 WGIII Report

Bangabandhu Chair Professor, Director of Centre on South and South East Asia Multidisciplinary Applied Research Network on Transforming Societies of Global South at SERD/AIT – Asian Institute of Technology

Prof. Joyashree Roy is interested in multidisciplinary approaches to understanding development challenges. She has widely travelled for research collaborations and research capacity building. Current research interests are: Economics of Climate Change, modeling energy demand, economy-wide modeling exercises for deriving policy implications, urban air pollution, water quality demand modeling, water, energy, carbon pricing, sustainable indicator development and estimation, natural resource accounting, valuing environmental services, and developmental and environmental issues relevant for South and South East Asia, informal sectors, Coastal Ecosystem service valuation.

She is the Founder advisor of the Global Change Programme (www.juglobalchangeprogram.org) which focuses on climate change research and beyond. She is also Founder Advisor of Ryoichi Sasakawa Young Leaders Fellowship Fund Project (http://www.jusylffprogram.org) on “Tradition, Social Change, and Sustainable Development: A Holistic Approach” at Jadavpur University. She was a Ford Foundation Postdoctoral Fellow in Environmental Economics at the Lawrence Berkeley National Laboratory, California , USA.

Karen Seto
Coordinating Lead Author, Chapter 8, IPCC AR6 WGIII Report

Professor – Yale University

Karen Seto is the Frederick C. Hixon Professor of Geography and Urbanization Science at the Yale School of the Environment. She is an urban and land change scientist whose central research focus is how urbanization will affect the planet. A geographer by training, she integrates remote sensing, field interviews, and modeling methods to study urbanization and land change, forecast urban growth, and examine the environmental consequences of urban expansion. She is an expert in satellite remote sensing analysis and has pioneered methods to reconstruct historical land-use and to develop empirical models to explain and forecast the expansion of urban areas. Seto is a specialist in contemporary urbanization in China and India, where she has conducted research for over 20 and 10 years, respectively. Her research is notable for its systematic use of big data and a scientific lens to study urbanization as a process and to understand the aggregate global impacts of urbanization. Seto’s research has generated new insights on the interaction between urbanization and food systems, the effects of urban expansion on biodiversity and cropland loss, urban energy use and emissions, and urban mitigation of climate change.

Professor Seto is one of the world’s leading experts on contemporary urbanization and global change, and has served on numerous national and international scientific bodies. She is co-editor-in-chief of the journal, Global Environmental Change. She co-founded and co-chaired the global research project, Urbanization and Global Environmental Change (UGEC), formerly of the International Human Dimensions Programme (IHDP) and Future Earth, from 2006 to 2016.  She has served on numerous U.S. National Research Council (NRC) Committees, including the NRC Committee to Advise the U.S. Global Change Research Program and the NRC Committee on Pathways to Urban Sustainability. From 2002 to 2008, she was the Global Thematic Leader for Ecosystem Management Tools for the Commission on Ecosystem Management of the International Union for Conservation of Nature (IUCN).

Linda Steg
Lead Author, Chapter 6, IPCC AR6 WGIII Report; Lead Author, Chapter 4, IPCC SR15

Professor – University of Groningen

Linda’s research focuses on understanding factors influencing sustainable behavior, the effects and acceptability of strategies aimed to encourage sustainable behavior, and how and why acting sustainably affects wellbeing. She is a member of the Royal Netherlands Academy of Arts and Sciences, and of the European Academy of Sciences and Arts. She is laureate of the Dutch Royal Decoration with appointment as the Knight of the Order of the Netherlands Lion, and laureate of the Stevin prize of the Dutch Research Council.  She previously served as President of division ‘Environmental Psychology’ of the International Association of Applied Psychology (IAAP), member of the Advisory Group on Energy for Horizon 2020, member of the Supervisory Board of the University of Twente, and associated member of the Dutch Council for the Environment and Infrastructure. Also, she coordinated the European PERSON platform (see www.person.eu) that aims to unite and advise socio-economic research on the human dimensions of sustainable energy transitions aimed to promote a secure, clean and efficient energy system.

Diana Ürge-Vorsatz
Vice-Chair, IPCC AR6 WGIII

Professor – Central European University

Diana Ürge-Vorsatz holds a Ph.D. from the University of California (Los Angeles and Berkeley). She served as the Acting Head of Department at CEU in 2002-2003 and directed the PhD program in 2003 – 2004. Diana Urge-Vorsatz was a Coordinating Lead Author in two Assessment Reports of the IPCC. She served on the United Nations’ Scientific Expert Group on Climate Change, and led the buildings-related work in the Global Energy Assessment. She serves as associate editor of the journal “Energy Efficiency”, and is a member of the Editorial Board of “Annual Reviews of Environment and Resources”. She was a Visiting Professor at the International Christian University of Tokyo and a Research Scholar at IIASA (International Institute for Applied Systems Analysis). She has been serving on the Governing and Advisory boards of several organizations, including Innogy (formerly RWE), the Austrian Climate and Energy Fund (KLIEN), the European Climate Foundation (ECF), the UK Energy Research Centre (UKERC), and the Hungarian Energy-Efficiency Co-financing Program (HEECP), and the Club of Budapest. She is regularly invited to high-level review panels, such as that evaluating the work at Lawrence Berkeley National Laboratory and the EU’s Joint Research Centre. She received the Hungarian Republic’s Presidential Award “Medium Cross” in 2008, as well as the “Role Model” award in 2009 and was invited as a member of Academia Europaea in 2017.

Mustafa Babiker
Coordinating Lead Author, Chapter 12, IPCC AR6 WGIII,Lead Author, Chapter 4, IPCC SR15

Research Associate, Joint Program on the Science and Policy of Global Change-MIT & Senior Consultant – Saudi Aramco

Mustafa is currently a senior analysis and planning consultant with Saudi Aramco and a research associate of the Massachusetts Institute of Technology (MIT) Joint Program on the Science and Policy of Global Change. Mustafa previously worked for MIT and the Arab Planning Institute. His Ph.D. is in Environmental and Natural Resource Economics from the University of Colorado in Boulder.

Leila Niamir
Chapter Scientist and Contributing Author, Chapter 5, IPCC AR6 WGIII

Research Scholar- International Institute for Applied Systems Analysis

Leila Niamir is a research scholar jointly associated with the Sustainable Service Systems and Transformative Institutional and Social Solutions research groups of the IIASA Energy, Climate, and Environment Program. She is a computational economist working on energy and climate change mitigation. Her research focus is on the science-policy-society interface, agent-based modeling, behavioral and lifestyle changes, the Sustainable Development Goals (SDGs), and wellbeing. Niamir received her doctoral degree from the University of Twente in The Netherlands in 2019 and worked as a postdoctoral researcher at MCC Berlin, Germany from 2019 to 2022.

Shreya Some
Lead Author, Chapter 4; Coordinating Lead Author, Annex C IPCC AR6 WGIII

Postdoctoral Researcher, at the Centre for South and South-East Asia Multidisciplinary Applied Research Network on Transforming Societies of Global South (SMARTS@SERD-AIT, Asian Institute of Technology)

Shreya Some is an economist by training. She did her M.A. in Economics (2015) and PhD (2021) from Jadavpur University, Kolkata, India. Her PhD thesis title was “Economics of Greenhouse Gas Emission Mitigation: A Study of the Indian Agricultural Sector” which tried to understand the ways in which non-CO2 GHG emissions can be reduced from Indian agriculture, the potential of reducing emissions and the associated costs and benefits using marginal abatement cost approach and sustainable development goals framework. During her PhD, she was an exchange scholar at the Technical University, Freiberg, Germany where she worked on Ancillary Benefits of Climate Policy Activities for Clean Development Mechanism (CDM), funded by the UGC-DAAD 2019-2021.

Her research interests include a wide range of topics: emission mitigation, energy modelling, just transition, gender equality and sustainable development. She is passionate about demand side climate mitigation, emission reduction from the food system, just transition of the food system. Her focus sectors are: agriculture, transport, urban and energy; and her focus regions are: South Asia and South East Asia. Her involvement in current projects includes zero carbon energy pathways for India.

Chandni Singh
Lead Author, Chapter 10, IPCC AR6 WGII; Author, Cross-Chapter Paper 2, IPCC AR6 WGII

Senior Research Consultant – Practice, Indian Institute for Human Settlements

Chandni Singh has a PhD in International Development from the University of Reading, United Kingdom and works at the interface of climate change and development in the global South. At IIHS, she works on climate change adaptation, drivers of differential vulnerability to climate change and hazards, and rural and urban livelihood transitions. She was a Contributing Author on the IPCC Special Report on Global Warming of 1.5°C and is a Lead Author on the Working Group II Assessment Report 6 (Chapter 10 Asia and Cross-chapter Paper on Cities and Settlements by the Sea). Chandni is also a Lead Author on UCCRN’s Third Assessment Report on Climate Change and Cities, and Contributing Author on the UNESCO-ICOMOS-IPCC “Cultural Heritage and Climate Change” Initiative. She serves on the editorial boards of Regional Environmental Change, Urbanisation, and Climate and Development, and is the ‘Vulnerability and Adaptation’ Domain Editor for Wires-Climate Change. She has previously worked in research and practice-based organisations such as the University of Reading (UK), Bioversity International, Pragya, and WWF India across South Asia and sub-Saharan Africa. Chandni is also deeply interested in science communication for lay audiences and is a published poet.

Amir Bazaz
Contributing Author, Chapter 4, IPCC Special Report on 1.5°C

Associate Dean, School of Environment and Sustainability; School of Systems and Infrastructure; Senior Lead Practice, Indian Institute for Human Settlements. 

Amir Bashir Bazaz is Senior Lead-Practice at IIHS. He has a PhD in Management from the  Indian Institute of Management Ahmedabad, with a specialization in Public Systems. He  has substantial experience of working with various integrated assessment frameworks  and modelling arrangements. His current research interests are low-carbon  societies/infrastructure, climate change mitigation and adaptation (across scales) with  specific focus on urban climate change linkages and climate, energy and environment  policy.

Amir he has been a Contributing Author to the IPCC Special Report on 1.5C (Chapter 4), is  Contributing Author to the Feasibility assessment in the AR6 cycle, has been a Lead  Author on the Summary for Urban Policy Makers (SUPM), and has been a Lead Author on  the Summary for Financial Decision Makers (SFDM). He was also the National Expert  Consultant to the Government of India, managing the production and submission of  India’s Second National Communication to the UNFCCC.

At IIHS, Amir had been the Regional Research Lead for a multi-partner, multi-year climate  adaptation research project — Adaptation at Scale in Semi-Arid Regions (ASSAR). This  project was part of an IDRC/DFID funded global climate adaptation research programme  — Collaborative Adaptation Research Initiative in Africa and Asia (CARIAA) operational  across West, South and East Africa as well as South Asia. In addition, Amir has been a part  of many practice-based engagements at IIHS, notably on ‘Energy Innovation’ in  partnership with Cambridge University; and ‘GCRF-PEAK program, focusing on  sustainable energy transitions in the Urban context’ in partnership with Oxford  University, Peking University, and the University of Cape Town and EAFIT University,  Colombia. He is the Lead Researcher for the Volkswagen Foundation funded multi-country, multi-year RESET project (Reconfiguring Sustainable Energy Transitions) that  tracks the energy transition in India, Germany, the Netherlands and South Africa. He also  manages the Disaster Risk & Resilience portfolio at IIHS.

Ian Klaus
Series Editor of the SUP Series

Senior Fellow, Chicago Council of Global Affairs

Ian Klaus is a senior fellow on global cities and foreign policy at the Chicago Council on  Global Affairs. He also serves as director of research and policy for the Global Parliament  of Mayors and as the series editor of the AR6 Summary for Urban Policymakers. Previously, he served as a diplomatic adviser to the Urban 20 and C40 City Climate  Leadership Group.

He was senior adviser for global cities at the US Department of State. In that role, he led urban diplomacy for the United States, engaging dozens of foreign ministries and  development agencies from Africa, South America, North America, Asia, and Europe on  urbanization and foreign policy issues. He also internally managed the State  Department’s efforts to develop urbanization-related policies. Klaus was deputy United  States negotiator for the United Nations Conference on Housing and Sustainable  Development. From 2011 – 2016, he served as member of the policy planning staff in the  office of the Secretary of State, advising the Secretary of State and Director of Policy  Planning. He has been a member of the World Economic Forum’s advisory board on the future of urban development, the Creative Cities Working Group at Stanford University, a  visiting fellow at the University of Pennsylvania, and the Ernest May Fellow for History and  Security Studies at the Kennedy School of Government. He holds a Ph.D. in international  history from Harvard University, and is the author of Forging Capitalism (Yale, 2014) and Elvis is Titanic (Knopf, 2007).

Aromar Revi
Coordinating Lead Author, Chapter 18, IPCC AR6 WGII and Chapter 4, IPCC Special Report on 1.5°C

Director, Indian Institute for Human Settlements

Aromar Revi is the founding Director of the Indian Institute for Human Settlements (IIHS).  He is a global practice and thought leader, and educator with over 37 years of interdisciplinary experience in sustainable development, global environmental change, long-term futures, governance, public policy and finance, and urbanisation. Aromar is a global expert on Sustainable Development; Co-Chair of UN Sustainable Development Solutions Network (SDSN). He is a member of the Advisory Board of UCLG, the global voice of local and regional governments from 0.24 million towns, cities and regions.

Aromar is a leading expert on global environmental change, especially climate change.  He was a Coordinating Lead Author (CLA) of the 2018 IPCC Special Report on Global Warming of 1.5 °C. He is a CLA of the synthesis chapter on Climate Resilient Development Pathways of the IPCC AR 6 on Adaptation, and a member of the AR6 Synthesis Report Core Writing Team. He was also a CLA of the 2018 SR1.5 Summary for Urban Policymakers, and the 2021 Summary for Financial Decisionmakers. He was earlier a CLA of the IPCC Assessment Report 5 on Urban Areas, that established the role of cities and regions in addressing climate risks in 2014.

He is one of South Asia’s most experienced risk and disaster management professionals and has been a member of the Advisory Board of UNDRR’ Scientific & Technical Advisory Group (STAG) and its bi-annual Global Assessment of Risk (GAR), from 2008. He has led the design for UNDRR of the Coalition for Disaster Resilient Infrastructure (CDRI), a global partnership to promote the resilience of infrastructure systems to climate and disaster risks.

Stuti Haldar
Author – SUP

Postdoctoral Researcher, Indian Institute for Human Settlements

Stuti is a postdoctoral researcher at Indian Institute for Human Settlements. Her current research project funded by Volkswagen Foundation, focuses on justice outcomes of energy transitions in the Global North versus South. An economist by training (PhD), her areas of interest include sociotechnical transitions, climate change, energy justice, institutional theory, and entrepreneurship and innovations. She has worked on Gujarat Social Infrastructure Development Society (GSIDS), Government of Gujarat (GoG) funded project on Human Development Report for Mahisagar district of Gujarat and Climate Change Department, GoG funded project on adoption determinants of solar PV rooftop technologies in the residential sector of Gujarat. She has been involved in projects with The Coalition for Disaster Resilient Infrastructure (CDRI). Stuti has also taught postgraduate and graduate courses on International trade and finance, Comparative economic systems, Innovation and Knowledge Economy.

Paolo Bertoldi
Lead Author, Chapter 9, IPCC AR6 WGIII, Lead Author, Chapter 4, IPCC SR15

Senior Expert – European Commission

Paolo Bertoldi is a senior expert in sustainable energy, climate change and energy efficiency at the European Commission.
Some of his key areas of expertise include: Energy Service Companies, market based instruments, governance, environmental leadership, ICT energy consumption.

Experienced Editor In Chief with a demonstrated history of working in the international affairs industry. Bertoldi is also skilled in sustainable energy, Corporate Social Responsibility, International Relations, and data centre, and is in charge of policy analysis for energy efficiency at the European Commission where he has served as Energy Efficiency Expert and Senior Expert for a total of 26 years. He has an engineering degree focused in energy systems and electrical system from University of Padova, Italy.

Felix Creutzig
Coordinating Lead Author, Chapter 5, IPCC AR6 WGIII

Head of working group Land Use, Infrastructure and Transport – Mercator Research Institute on Global Commons and Climate Change

Prof. Dr. Felix Creutzig is head of the working group Land Use, Infrastructures and Transport and Chair of Sustainability Economics at Technische Universität Berlin. He was lead author of the IPCC’s Fifth Assessment Report and lead analyst of the Global Energy Assessment. His research focuses on: Conceptualizing and quantifying GHG emissions of cities world-wide; Assessing opportunities for GHG mitigation of cities world-wide; Building models of sustainable urban form and transport; Land rents as a complement for financing sustainable infrastructures; Analyzing the role of capital stocks and infrastructures for climate change mitigation; Land use-mediated uncertainty in integrated assessments, particularly those related to bioenergy.

Before joining the MCC and TU Berlin, Felix was a postdoc fellow at the Energy and Resources Group at the University of California, Berkeley, collaborating with Dan Kammen, Lee Schipper and Elizabeth Deakin, and the Energy Foundation China in Beijing. Felix Creutzig received his PhD in Computational Neuroscience from Humboldt-Universität zu Berlin, and holds a Master of Advanced Studies (Path III in Mathematics) from Cambridge University, UK. From 2009 until 2011 Felix was also chair of Netzwerk Europa, the Alumni organization of the Studienkolleg zu Berlin.

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