Research achievements of Professor Tomoko Hasegawa and others published in The Lancet, The Lancet Planetary Health

Modern food systems place a significant burden on the environment, accounting for more than 25% of worldwide greenhouse gas emissions. An international research group involving the National Institute for Environmental Studies, Kyoto University, and Ritsumeikan University used several simulation models to evaluate the environmental and economic impact of a “major transformation of food systems”—combining sustainable and healthy diets, reduction of food waste, and improved productivity—if implemented through 2050.

The results showed that implementing such a transformation could deliver benefits for both the environment and the economy. Compared to taking no action, it would halve the increase in greenhouse gas emissions from agriculture and land use, and help curb the rise in food prices driven by climate change mitigation measures.

Article #1
Paper title: The EAT–Lancet Commission on healthy, sustainable, and just food systems
Authors: Johan Rockström, Shakuntala Haraksingh Thilsted, Walter C Willett, Line J Gordon, Mario Herrero, Christina C Hicks, Daniel Mason-D’Croz, Nitya Rao, Marco Springmann, Ellen Cecilie Wright, Rina Agustina, Sumati Bajaj, Anne Charlotte Bunge, Bianca Carducci, Costanza Conti, Namukolo Covic, Jessica
Fanzo, Nita G Forouhi, Matthew F Gibson, Xiao Gu, Ermias Kebreab, Claire Kremen, Amar Laila, Ramanan Laxminarayan, Theresa M Marteau, Carlos A Monteiro, Anna Norberg, Jemimah Njuki, Thais Diniz Oliveira, Wen-Harn Pan, Juan A Rivera, James P W Robinson, Marina Sundiang, Sofie te Wierik, Detlef P
van Vuuren, Sonja Vermeulen, Patrick Webb, Lujain Alqodmani, Ramya Ambikapathi, Anne Barnhill, Isabel Baudish, Felicitas Beier, Damien Beillouin, Arthur H W Beusen, Jannes Breier, Charlotte Chemarin, Maksym Chepeliev, Jennifer Clapp, Wim de Vries, Ignacio Pérez-Domínguez, Natalia Estrada-Carmona, Dieter Gerten, Christopher D Golden, Sarah K Jones, Peter Søgaard Jørgensen, Marta Kozicka, Hermann Lotze-Campen, Federico Maggi, Emma Marzi, Abhijeet Mishra, Fernando Orduna-Cabrera, Alexander Popp, Lena Schulte-Uebbing, Elke Stehfest, Fiona H M Tang, Kazuaki Tsuchiya, Hannah H E Van Zanten, Willem-Jan van Zeist, Xin Zhao, Fabrice DeClerck
Publication journal: The Lancet
Publication date: October 3, 2025
DOI: https://doi.org/10.1016/S0140-6736(25)01201-2

Article #2
Paper title: Bundling measures for food systems transformation: a global, multimodel assessment
Authors: Marina Sundiang, Thais Diniz Oliveira, Daniel Mason-D’Croz, Matthew Gibson, Felicitas Beier, Lauren Benavidez, Benjamin Leon Bodirsky, Astrid Bos, Maksym Chepeliev, David Meng-Chuen Chen, Thijs de Lange, Jonathan Doelman, Shahnila Dunston, Stefan Frank, Shinichiro Fujimori, Tomoko Hasegawa, Petr Havlik, Jordan Hristov, Jonas Jägermeyr, Marta Kozicka, Marijke Kuiper, Page Kyle, Hermann LotzeCampen, Hermen Luchtenbelt, Abhijeet Mishra, Christoph Müller, Gerald Nelson, Amanda Palazzo, Ignacio Pérez Domínguez, Alexander Popp, Ronald Sands, Marco Springmann, Elke Stehfest, Timothy Sulser, Kiyoshi Takahashi, Gianmaria Tassinari, Ferike Thom, Philip Thornton, Kazuaki Tsuchiya, WillemJan van Zeist, Hans van Meijl, Dominique van der Mensbrugghe, Detlef Van Vuuren, Hannah H. E. van Zanten, Isabelle Weindl, Keith Wiebe, Xin Zhao, Mario Herrero
Publication journal: The Lancet Planetary Health
Publication date: November 4, 2025
DOI: https://doi.org/10.1016/j.lanplh.2025.101339