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IAMC

Extraordinary Contributions to the Field of IAM

Recognises a contribution that has significantly advanced the field of integrated assessment modeling.

The Award for Extraordinary Contributions to the field of Integrated Assessment Modeling (ECA) is given for a specific extraordinary contribution during the past three years. It recognises those who have made outstanding scientific contributions to the field of IAM, and/or have made significant contributions to the IAM community formation, and/or have increased the impact of the IAM community. The prize is in principle awarded every year, but only if one or more awardees deserving the prize were nominated. The ECA can be given only once to a single person.

2025 Saritha Sudharmma VISHWANATHAN

2024 Massimo TAVONI

2023 Céline GUIVARCH

2022 Volker KREY

2021 Shinichiro FUJIMORI

2020 Roberto SCHAEFFER

2019 Kate CALVIN

2017 Brian O’NEILL

2016 Keywan RIAHI

2015 Leon CLARKE

2013 Elmar KRIEGLER

2012 Detlef VAN VUUREN

Nominations

Every year, a joint call for nominations is launched for the for the Lifetime Achievement Award (LAA), the Award for Extraordinary Contributions to the field of Integrated Assessment Modeling (ECA) and the Award for Early Career Researcher (ECRA). Nominations are open to all representatives of IAMC members, at an individual level (thus multiple nominations from members from the same institution are accepted). Self nominations are not accepted. Nominations are submitted confidentially to the Secretariat and will be treated as strictly confidential by the Evaluation Committee and the Secretariat. Nominations will be automatically disqualified in the event they are made public by the submitting party before a decision has been taken. Submissions include an explanation supporting the nomination.

Evaluating Committee

The LAA, the ECA, and the ECRA have in principle the same Evaluating Committee. It is constituted by seven members:

  • the three previous ECA winners that are still active IAMC members;
  • four members selected by the SSC amongst previous LAA and ECA winners that are still active IAMC members.

The SSC appoints a chairperson of the Evaluating Committee who will coordinate the selection process with the support of the IAMC Secretariat. The SSC will appoint the Evaluating Committee after that the call for nominations is closed. Appointments will be made considering the nominations collected and avoiding that members of the Evaluating Committee are nominees themselves and avoiding also conflicts of interest due to nominees and Selection Committee members from the same institute and/or the same region. The Evaluating Committee will assess the merits of the submissions for a given year, make a ranking of submissions received and evaluate whether the contribution of the top ranked candidate would merit the awards. At the latest one month before the annual meeting, the Evaluating Committee chair will send the Committee’s recommendation to the SSC either to not award the LAA and the ECA for the year, or to award it to the top-ranked candidate.

Scientific Steering Committee Endorsement

The Scientific Steering Committee (SSC) will make the final decisions on the recommendation of the Evaluating Committee, and can still change the ranking or the evaluation to award or not to award the top-ranked candidate. This, however, should only be in exceptional cases. The SSC decision will be by majority. There can only be one LAA, one ECA and one ECRA per year. If a member of the SCC is proposed for the awards, this member is not informed about the recommendation of the Evaluating Committee and is excluded from any SSC deliberation on this matter.

Award Announcement

Awardees are announced at the Annual Meeting, during an Awards Ceremony taking place as a plenary session. The awardee is not informed in advance, but there may be exceptions. The announcement will be accompanied with a plaque and a written motivation.

Recipients

2025 Poster Award winners

Best Poster 2025

Criteria for judging posters:

Fifth and Sixth Placeholder Recipient

Best Poster 2025

Placeholder Institute for Climate Research

Placeholder award record. The Best Poster Award is given for the strongest poster presentation at the Annual Meeting, and is often shared between several presenters.
Fourth Placeholder Recipient

Fourth Placeholder Recipient

Extraordinary Contributions to the Field of IAM 2025

Institute of Environmental Futures

Placeholder award record, included so the awards listings have more than one entry to display and filter.

Mark Dekker

Early Career Researcher 2025

During the Seventeenth IAMC Annual Meeting held online on 11-13 November 2025, the Integrated Assessment Modeling Consortium was proud to honour Mark Dekker (PBL) with the Early Career Researcher Award. Mark Dekker was awarded the prize for his fundamental and innovative contributions to advancing integrated assessment modelling, particularly through the development of
Placeholder Recipient

Placeholder Recipient

Early Career Researcher 2025

Institute for Integrated Modelling

Website

Recognised for work on representing demand-side mitigation in integrated assessment models, and for making the underlying dataset and code openly available.

Roberto Schaeffer

Lifetime Achievement 2025

building has helped shape the next generation of climate scientists

During the Eighteenth IAMC Annual Meeting held online last 11 13 November 2025, the Integrated Assessment Modeling Consortium was proud to honour Roberto Schaeffer (PPE/COPPE/UFRJ, Brazil) with the IAMC Lifetime Achievement Award.

Saritha Sudharmma VISHWANATHAN

Extraordinary Contributions to the Field of IAM 2025

During the Eighteenth IAMC Annual Meeting held online on 11 13 November 2025, the Integrated Assessment Modeling Consortium was proud to honour Saritha Sudharmma VISHWANATHAN with the Extraordinary Contributions to the field of Integrated Assessment Modeling Award.
Third Placeholder Recipient

Third Placeholder Recipient

Lifetime Achievement 2025

National Energy Systems Laboratory

Placeholder award record, included so the awards listings have more than one entry to display and filter.

Marina ANDRIJEVIC

Early Career Researcher 2024

Website

During the Seventeenth IAMC Annual Meeting held online on 4-6 November 2024, the Integrated Assessment Modeling Consortium was proud to honour Marina Andrijevic (IIASA) with the Early Career Researcher Award for contributions to the socioeconomic dimension of integrated assessment modelling, including her recent paper on adaptive capacities. Andrijevic, M., Schleussner, CF., Crespo Cuaresma, J. et

Massimo TAVONI

Extraordinary Contributions to the Field of IAM 2024

Website

During the Seventeenth IAMC Annual Meeting held online on 4-6 November 2024, the Integrated Assessment Modeling Consortium was proud to honour Massimo TAVONI (EIEE and PoliMI) with the Extraordinary Contributions to the field of Integrated Assessment Modeling Award.

P.R. Shukla

Lifetime Achievement 2024

Ahmedabad University

During the Seventeenth IAMC Annual Meeting held online last 4-6 November 2024, the Integrated Assessment Modeling Consortium was proud to honour P.R. Shukla (Ahmedabad University) with the IAMC Lifetime Achievement Award
Second Placeholder Recipient

Second Placeholder Recipient

Early Career Researcher 2024

Centre for Climate Economics

Placeholder award record, included so the awards listings have more than one entry to display and filter.
During the Seventeenth IAMC Annual Meeting held 4 November – 6 November 2024, the Integrated Assessment Modeling Consortium granted Shiyu DENG (University College London) with the Best In-Person Poster Award and Sioux Fanny Melo Leon (Utrecht University) with the Best Online Poster Award

Céline GUIVARCH

Extraordinary Contributions to the Field of IAM 2023

During the Sixteenth IAMC Annual Meeting held last 14 November – 16 November 2023, the Integrated Assessment Modeling Consortium was proud to honour Céline GUIVARCH (CIRED) with the Extraordinary Contributions to the field of Integrated Assessment Modeling Award.

Jay FUHRMAN

Early Career Researcher 2023

Website

During the Sixteenth IAMC Annual Meeting held last 14 November – 16 November 2023, the Integrated Assessment Modeling Consortium was proud to honour Jay FUHRMAN (PNNL/JGCRI) with the Early Career Researcher Award for his paper
During the Sixteenth IAMC Annual Meeting held last 14 November – 16 November 2023, the Integrated Assessment Modeling Consortium granted Perla Rivadeneyra (Fondazione Eni Enrico Mattei) with the Best In-Person Poster Award and Giacomo Falchetta (IIASA and CMCC) with the Best Online Poster

Jarmo KIKSTRA

Early Career Researcher 2022

Website

During the Fifteenth IAMC Annual Meeting held online last 29 November – 2 December 2022, the Integrated Assessment Modeling Consortium was proud to honour Jarmo KIKSTRA (IIASA) with the Early Career Researcher Award for his paper Kikstra, J. S., Vinca,

Mikiko KAINUMA

Lifetime Achievement 2022

National Institute for Environmental Studies

During the Fifteenth IAMC Annual Meeting held online last 29 November – 1 December 2022, the Integrated Assessment Modeling Consortium was proud to honour Mikiko Kainuma (Institute for Global Environmental Strategies) with the IAMC Lifetime Achievement Award

Volker KREY

Extraordinary Contributions to the Field of IAM 2022

During the Fifteenth IAMC Annual Meeting held last 29 November – 2 December 2022, the Integrated Assessment Modeling Consortium was proud to honour Volker KREY (IIASA) with the Extraordinary Contributions to the field of Integrated Assessment Modeling Award.

David LECLÈRE

Early Career Researcher 2021

Website

During the Fourteenth IAMC Annual Meeting held online last 29 November – 3 December 2021, the Integrated Assessment Modeling Consortium was proud to honour David LECLÈRE (IIASA) with the Early Career Researcher Award for his paper Leclère, D., Obersteiner, M.,

Kimon Keramidas and Yang Ou

Best Poster 2021

During the Fourteenth IAMC Annual Meeting held last 29 November – 3 December 2021, the Integrated Assessment Modeling Consortium granted Kimon KERAMIDAS (U Grenoble-Alpes) and Yang OU (PNNL) with the Best Poster Award

Nebojsa NAKICENOVIC

Lifetime Achievement 2021

Vienna University of Technology. He

During the Fourteenth IAMC Annual Meeting held online last 29 November – 3 December 2021, the Integrated Assessment Modeling Consortium was proud to honour Nebojsa Nakicenovic (IIASA) with the IAMC Lifetime Achievement Award

Shinichiro FUJIMORI

Extraordinary Contributions to the Field of IAM 2021

Website

During the Fourteenth IAMC Annual Meeting held online last 29 November – 3 December 2021, the Integrated Assessment Modeling Consortium was proud to honour Shinichiro FUJIMORI (Kyoto University/NIES) with the Extraordinary Contributions to the field of Integrated Assessment Modeling Award.

Jae EDMONDS

Lifetime Achievement 2020

During the Thirteenth IAMC Annual Meeting held online last 1-4 December 2020 in Tzukuba, Japan, the Integrated Assessment Modeling Consortium was proud to honour Jae Edmonds (PNNL) with the IAMC Lifetime Achievement Award Jae Edmonds has

John WEYANT

Lifetime Achievement 2020

During the Eleventh IAMC Annual Meeting held last 13-15 November 2018 in Seville, Spain, the Integrated Assessment Modeling Consortium was proud to honour John Weyant (Stanford University) with the IAMC Lifetime Achievement AwardJohn Weyant has played a critically important role in the development of the Integrated Assessment Modelling
During the Thirteenth IAMC Annual Meeting held last 1-4 December 2020, the Integrated Assessment Modeling Consortium granted Jérôme HILAIRE (PIK) and Siddharth JOSHI (MaREI, ERI, University College Cork) with the Best Poster Award

Roberto SCHAEFFER

Extraordinary Contributions to the Field of IAM 2020

During the Thirteenth IAMC Annual Meeting held online last 1-4 December 2020, the Integrated Assessment Modeling Consortium was proud to honour Roberto Schaeffer (COPPE) with the Extraordinary Contributions to the field of Integrated Assessment Modeling Award.

Kate CALVIN

Extraordinary Contributions to the Field of IAM 2019

During the Twelfth IAMC Annual Meeting held last 2-4 December 2019 in Tzukuba, Japan, the Integrated Assessment Modeling Consortium was proud to honour Cate Kalvin (PNNL’s Joint Global Change Research Institute) with the IAMC Award for extraordinary contributions to the field of

Pedro ROCHEDO

Best Poster 2019

During the Twelfth IAMC Annual Meeting held last 2-4 December 2019 in Tzukuba, Japan, the Integrated Assessment Modeling Consortium granted Pedro ROCHEDO (PPE/COPPE/UFRJ) with the Best Poster Award The Opportunity Cost of the

William D. NORDHAUS

Lifetime Achievement 2019

During the Twelfth IAMC Annual Meeting held last 2-4 December 2019 in Tzukuba, Japan, the Integrated Assessment Modeling Consortium was proud to honour William D. Nordhaus (Yale University) with the IAMC Lifetime Achievement Award William D. Nordhaus is being recognized for:

Brian O’NEILL

Extraordinary Contributions to the Field of IAM 2017

Keywan RIAHI

Extraordinary Contributions to the Field of IAM 2016

Leon CLARKE

Extraordinary Contributions to the Field of IAM 2015

Elmar KRIEGLER

Extraordinary Contributions to the Field of IAM 2013

Detlef VAN VUUREN

Extraordinary Contributions to the Field of IAM 2012