Takuma Watari, PhD

Contact: watari.takuma(at)


Takuma is a tenure-track researcher at the National Institute for Environmental Studies (Japan) and a JSPS Overseas Research Fellow at Leiden University (Netherlands). Previously, he worked at the University of Cambridge (UK) and the University of Technology Sydney (Australia).

His research focuses on sustainable materials and energy systems, particularly industrial decarbonisation and responsible supply of critical materials. He approaches these topics by integrating traditional engineering principles with systems analysis, such as material flow analysis, energy system modelling and life cycle assessment.

He received his PhD from the University of Tokyo (Japan) in 2021, where he won the Dean’s Award and was the first student in the department to complete the PhD program within a two-year timeframe.

Research Areas

Industrial Ecology, Energy System, Resource Efficiency

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