# Diana Ürge-Vorsatz

Diana Ürge-Vorsatz is a Hungarian scientist. She is a Vice-Chair of the Intergovernmental Panel on Climate Change, and professor of Environmental Sciences at Central European University. She was the Director of the Center for Climate Change and Sustainable Energy Policy. She has published widely on environmental and energy studies, primarily climate change mitigation.
Ürge-Vorsatz was a coordinating lead author of both the Fourth and Fifth Assessment Reports (AR4 and AR5) of the Nobel Peace Prize-winning Intergovernmental Panel on Climate Change.

## Early life

Diana Ürge-Vorsatz was born in 1968 in Berlin. She grew up in Budapest, where she attended Radnóti Miklós High School. From 1986-1992 Ürge-Vorsatz attended Eötvös Lóránd University of Sciences (ELTE) in Budapest, earning a master's degree in physics in 1992 with specialization in both Astrophysics and Environmental Physics. During this time, Ürge-Vorsatz also studied as a visiting student at Brunel, the University of West London from 1990-1991, where she took graduate courses in environmental pollution science and conducted research in environmental physics. In the summer of 1992, following her Master's graduation, Ürge-Vorsatz attended a post-grad program in Environmental Science at Central European University. She credits her switch in discipline from astrophysics to climate change as coming as an epiphany that occurred during a meeting on an unrelated topic, where she was suddenly struck by a "a strong feeling that she must focus on problems that are happening on Earth."
Ürge-Vorsatz was a Fulbright Scholar within the Energy and Resources Group at the University of California, Los Angeles and Berkeley. She earned her PhD in Environmental Science and Engineering from the University of California in 1996. Her dissertation is titled "Evaluating US Residential and Commercial Electricity Conservation Potentials: an Analysis of the Lighting Sector."

## Career

Ürge-Vorsatz became an associate professor at Central European University (CEU) in 2001, and a full Professor in 2007. Ürge-Vorsatz accepted the position of Director for the Center for Climate Change and Sustainable Energy Policy (3CSEP) in 2007.
Ürge-Vorsatz has served on the Scientific Expert Group on Climate Change of the United Nations, and led work on the Global Energy Assessment of buildings. She is the vice chair of the Intergovernmental Panel on Climate Change Working Group III (WG III).
Ürge-Vorsatz was a coordinating lead author of both the Fourth and Fifth Assessment Reports (AR4 and AR5) of the Nobel Peace Prize-winning Intergovernmental Panel on Climate Change. The Nobel Peace Prize was awarded jointly to the Intergovernmental Panel on Climate Change and Al Gore for their efforts to bring climate change information to the public.
Ürge-Vorsatz has been serving as Vice Chair of the Intergovernmental Panel on Climate Change since July 2023.
Ürge-Vorsatz has played a key advocacy role in influencing international climate negotiations. She has advised organisations like the European Commission and the United Nations on energy efficiency and climate policy. Her recommendations for alleviating fuel poverty in Hungary have become a model for integrating climate and social policies globally. Her efforts have led to policy shifts that prioritise energy-efficient housing retrofits as a dual solution for reducing emissions and improving living conditions.

## Research

Ürge-Vorsatz's early country studies include the first comprehensive assessment of fuel poverty in Hungary. A household is defined as "fuel-poor" if its inhabitants have to spend more than 10% of their income on fuel to maintain adequate living temperatures. As of 2010, an estimated 80% of Hungarian homes were fuel poor, according to this definition. Such people may have to choose between heat and other basic needs such as food. Fuel poverty is therefore only one aspect of a broader and inter-related range of deprivations.
Diana Ürge-Vorsatz and her colleagues consider synergies and possible trade-offs for the development of sensible economic policies. The design and use of buildings is a key factor in both fuel poverty and climate change mitigation and adaptation. Reducing and eliminating fuel poverty, and decreasing carbon emissions and the impacts of climate change, are potentially compatible goals. Policy approaches can include energy-efficiency programmes, subsidies, tariffs, coordinated governance, support for low carbon technologies, and traditional transfer policies. In many cases, decisions involve complicated tradeoffs: between what is possible now and what may be available in the future, and between immediate and longer term impacts of decisions. For example, they argue that income support schemes are at best temporary solutions, with a danger of locking households into continuing use of inefficient energy systems, without addressing underlying problems. In contrast, improving the energy performance of housing stock has the potential to lift households out of energy poverty and to provide co-benefits such as increased employment. In terms of retrofitting existing buildings, it becomes important to consider whether immediately doable (but possibly less effective) interventions are a better or worse choice, given the urgency of addressing climate change and the possible effects of delays in waiting for future (but possibly more sustainable) solutions. By considering issues in terms of multiple objectives and multiple impacts, they hope to develop a viable ecosocial policy agenda that enables people to meet basic needs.
Co-benefits often account for a significant percentage of the evaluation of benefit from policy interventions (e.g. from 53% for renewable wind farms to 350% for thermal insulation). Ürge-Vorsatz notes that co-benefits are variously defined in the literature, and that methods for measurement and indicators used vary. Ürge-Vorsatz uses intent as a key distinction, defining co-benefits as a result of intentionally pursuing multiple objectives. She notes that the valuation of co-benefits should include both net benefits and distributional effects.
Ürge-Vorsatz discusses the difficulties involved in obtaining reliable data and the importance of identifying and using measures that are relevant to achieving sustainable development goals (SDGs) in urban environments. She emphasizes the importance of both climate-friendly construction of buildings and land-use management of agriculture and forestry for their potential climate-positive role. She also discusses the potential for individual action and the creation of "enabling conditions" that will help climate action to succeed.

## Public engagement

Ürge-Vorsatz engages with the public through regular writing on environmental issues for Hungarian and European newsletters and newspapers. She participated in workshops such as the Fulbright Workshop on the Environment in San Francisco in 1994. She is the founder and moderator of HIX KÖRNYÉSZ, an electronic environmental science periodical.
Diana Ürge-Vorsatz has actively engaged in public discourse on climate change and energy policy, regularly contributing to Hungarian and European newspapers and newsletters. She is a frequent keynote speaker at international conferences, such as COP meetings, and has appeared in global media outlets, including BBC, The New York Times, and EuroNews.

## Awards and Recognitions

→2023: Elected Vice Chair of the Intergovernmental Panel on Climate Change (IPCC).
→2009: Recipient of the "Példakép" Award by the Pannon Példakép Foundation as one of Hungary's role models.
→2008: Recipient of the Hungarian Presidential recognition A Magyar Köztársasági Érdemrend Középkeresztje (Medium Cross Medal of the Hungarian Republic).
→1993–1995: Fulbright Fellowship, Energy and Resources Group, University of California.
→1990: Winner of The Brief Award, UK, for environmental achievements.
→Recognised for her contributions to the Nobel Peace Prize awarded to the IPCC in 2007.

## Personal life

In 1984, Ürge-Vorsatz won the Hungarian National Championship in orienteering.

## Selected publications

* Ürge-Vorsatz, Diana; Koeppel, Sonja; Mirasgedis, Sebastian (1 August 2007). "Appraisal of policy instruments for reducing buildings' CO2 emissions". Building Research & Information. 35 (4): 458–477. doi:10.1080/09613210701327384. ISSN 0961-3218. S2CID 109325859.
* Ürge-Vorsatz, Diana; Novikova, Aleksandra (2008). "Potentials and costs of carbon dioxide mitigation in the world's buildings". Energy Policy. 36 (2): 642–661. doi:10.1016/j.enpol.2007.10.009.
* Ürge-Vorsatz, Diana; Tirado Herrero, Sergio (1 October 2012). "Building synergies between climate change mitigation and energy poverty alleviation". Energy Policy. 49: 83–90. doi:10.1016/j.enpol.2011.11.093.
* Ürge-Vorsatz, Diana; Cabeza, Luisa F.; Serrano, Susana; Barreneche, Camila; Petrichenko, Ksenia (2015). "Heating and cooling energy trends and drivers in buildings". Renewable and Sustainable Energy Reviews. 41: 85–98. doi:10.1016/j.rser.2014.08.039. hdl:20.500.14018/12540.
* Ürge-Vorsatz, Diana; Tirado Herrero, Sergio; Dubash, Navroz K.; Lecocq, Franck (2014). "Measuring the co-benefits of climate change mitigation". Annual Review of Environment and Resources. 39: 549–582. doi:10.1146/annurev-environ-031312-125456.
* Seto, K.; Davis, S.; Mitchell, R.; Stokes, Eleanor C.; Unruh, Gregory C.; Ürge-Vorsatz, D. (2016). "Carbon Lock-In: Types, Causes, and Policy Implications". Annual Review of Environment and Resources. 41 (1): 425–452. doi:10.1146/annurev-environ-110615-085934.
* Güneralp, Burak; Zhou, Yuyu; Ürge-Vorsatz, Diana; Gupta, Mukesh; Yu, Sha; Patel, Pralit L.; Fragkias, Michail; Li, Xiaoma; Seto, Karen C. (2017). "Global scenarios of urban density and its impacts on building energy use through 2050". Proceedings of the National Academy of Sciences. 114 (34): 8945–8950. Bibcode:2017PNAS..114.8945G. doi:10.1073/pnas.1606035114. PMC 5576775. PMID 28069957.
* Ürge-Vorsatz, Diana; Rosenzweig, Cynthia; Dawson, Richard J.; Sanchez Rodriguez, Roberto; Bai, Xuemei; Barau, Aliyu Salisu; Seto, Karen C.; Dhakal, Shobhakar (March 2018). "Locking in positive climate responses in cities". Nature Climate Change. 8 (3): 174–177. Bibcode:2018NatCC...8..174U. doi:10.1038/s41558-018-0100-6. ISSN 1758-6798. S2CID 89923163.
* Sanchez Rodriguez, Roberto; Ürge-Vorsatz, Diana; Barau, Aliyu Salisu (March 2018). "Sustainable Development Goals and climate change adaptation in cities". Nature Climate Change. 8 (3): 181–183. Bibcode:2018NatCC...8..181S. doi:10.1038/s41558-018-0098-9. ISSN 1758-6798. S2CID 90254521.
* Cabeza, Luisa F.; Ürge-Vorsatz, Diana (1 January 2020). "The role of buildings in the energy transition in the context of the climate change challenge". Global Transitions. 2: 257–260. doi:10.1016/j.glt.2020.11.004. ISSN 2589-7918. S2CID 229248127.
* Ürge-Vorsatz, Diana; Khosla, Radhika; Bernhardt, Rob; Chan, Yi Chieh; Vérez, David; Hu, Shan; Cabeza, Luisa F. (17 October 2020). "Advances Toward a Net-Zero Global Building Sector". Annual Review of Environment and Resources. 45 (1): 227–269. doi:10.1146/annurev-environ-012420-045843. ISSN 1543-5938. S2CID 225303035.