Keisuke Nansai

Datos Biográficos

ID91530
NOMBREKeisuke Nansai
NOMBRESKeisuke
APELLIDONansai
FIRMANANSAI K
AFILIACIONESNational Institute for Environmental Studies
ORCID0000-0002-2449-1874
VERIFICADOSí
TOTAL DE OBRAS15
TOTAL DE CITAS23
TOTAL COMO AUTOR15
TOTAL COMO EDITOR0
PRIMER AÑO DE PUBLICACIÓN2008
AÑO MÁS RECIENTE DE PUBLICACIÓN2025
ÍNDICE H2

  • Prospective life cycle and circularity assessment of circular business models using an empirically grounded agent‐based model

    Open AccessRyu Koide, Shinsuke Murakami et al.ARTICLEJournal of Industrial Ecology2025

    Despite the need for methodologies that support early‐phase decision‐making in the transition to a circular economy, current sustainability assessments often lack a prospective method that dynamically accounts for consumer decision‐making based on empirical evidence. This study addresses this need by evaluating the circularity and environmental impacts of circular business models over a 30‐year period, using an empirically grounded agent‐based mo…

  • Detailed carbon footprint of long-term care in an aging society

    Open AccessNarumi Kira, Sho Hata et al.ARTICLEEnvironmental Research Letters2025

    As the concept of planetary health garners increased attention, the necessity of quantifying the carbon footprint (CF) of healthcare supply chains has become more pronounced. Although global studies have examined the CF of the healthcare sector, there remains a notable gap in research concerning the CF of long-term care (LTC) services, which are essential to human health and welfare. We harmonized environmental input–output analysis with data der…

  • Who is self-committed to climate action? Exploring decarbonisation actions and target gaps using carbon footprint calculator data in Japan

    Open AccessRyu Koide, Sho Hata et al.ARTICLEEnergy Research & Social Science2025Citada por: 1Referencias: 14

  • Carbon‐neutral pathways to 2050 for Japan's aviation industry in the absence of a mass supply of sustainable aviation fuels

    Open AccessMinami Kito, Hirotaka Takayabu et al.ARTICLEJournal of Industrial Ecology2023

    The global aviation sector must reduce its carbon dioxide (CO 2 ) emissions to achieve its 2050 net‐zero emissions target. Although the current pathway to the target considers an increase in aviation demand following the COVID‐19 pandemic, emissions can be offset by the introduction of future technologies such as electric and hydrogen aircraft and sustainable aviation fuels (SAF). However, the commercialization of these future technologies is unc…

  • Limited quantity and quality of steel supply in a zero-emission future

    Open AccessTakuma Watari, Sho Hata et al.ARTICLENature Sustainability2023Referencias: 3

  • Exploring carbon footprint reduction pathways through urban lifestyle changes

    Open AccessRyu Koide, Satoshi Kojima et al.ARTICLEEnvironmental Research Letters2021

    Cities and urban consumers play a central role in the transition to a decarbonized society. Building on existing studies that identify the significant contributions of lifestyle changes, this study proposes a practical methodology for modeling and exploring city-specific carbon footprint reduction pathways through lifestyle changes to decarbonization. It uses an input–output approach with mixed-unit consumption data and the concept of adoption ra…

  • Implementing the material footprint to measure progress towards Sustainable Development Goals 8 and 12

    Open AccessManfred Lenzen, Arne Geschke et al.ARTICLENature Sustainability2021Citada por: 13Referencias: 5

  • Contraction and convergence of in-use metal stocks to meet climate goals

    Open AccessTakuma Watari, Keisuke Nansai et al.ARTICLEGlobal Environmental Change2021Citada por: 1Referencias: 6

    The foundations of modern society are based on metals, yet their production is currently placing considerable strain on the Earth’s carrying capacity. Here, we develop a century-long scenario for six major metals (iron, aluminum, copper, zinc, lead, and nickel) harmonized with climate goals, with the goal of establishing science-based targets. We show that for the metal sector to contribute proportionally to emission reductions targets of the ind…

  • Quantifying lifestyle based social equity implications for national sustainable development policy

    Open AccessYosuke Shigetomi, Andrew Chapman et al.ARTICLEEnvironmental Research Letters2020

    The aim of this research is to address the challenge of achieving more equitable social outcomes through a reduction and fairer allocation of environmental burdens, and in doing so, contributing to national sustainable development policy. This novel study demonstrates the nature of societal outcomes through the lens of inequity with respect to lifestyle related environmental footprints and stakeholder preferences. Footprints are derived using inp…

  • Nitrogen footprints

    Open AccessHideaki Shibata, James N Galloway et al.ARTICLEAMBIO2017Citada por: 1Referencias: 39

    Nitrogen (N) management presents a sustainability dilemma: N is strongly linked to energy and food production, but excess reactive N causes environmental pollution. The N footprint is an indicator that quantifies reactive N losses to the environment from consumption and production of food and the use of energy. The average per capita N footprint (calculated using the N-Calculator methodology) of ten countries varies from 15 to 47 kg N capita−1 ye…

  • CO2 emission clusters within global supply chain networks

    Open AccessShigemi Kagawa, Sangwon Suh et al.ARTICLEGlobal Environmental Change2015Citada por: 5Referencias: 6

  • Trends in Japanese households' critical-metals material footprints

    Open AccessYosuke Shigetomi, Keisuke Nansai et al.ARTICLEEcological Economics2015Referencias: 2

    This study adopts the concept of material footprint (MF), an indicator for consumption-based material extraction via international trade, and identifies the relationship between the MFs of critical metals for low-carbon technologies – neodymium, cobalt, and platinum – and Japanese household consumption through a multiregional input–output approach using the global link input–output model. We focus solely on the impact of changes in consumption pa…

  • Finding environmentally important industry clusters

    Open AccessShigemi Kagawa, Shunsuke Okamoto et al.ARTICLESocial Networks2013

  • Better cars or older cars

    Open AccessShigemi Kagawa, Klaus Hubacek et al.ARTICLEGlobal Environmental Change2013Citada por: 2

  • What Factors Have Changed Japanese Resource Productivity

    Open AccessSeiji Hashimoto, Shigekazu Matsui et al.ARTICLEJournal of Industrial Ecology2008

    In 2003, the Fundamental Plan for Establishing a Sound Material‐Cycle Society was developed; it established indicators and numerical targets for each of three aspects of material flows in Japan. One of the three indicators is resource productivity: Gross domestic product divided by direct material input (GDP/DMI). This article elucidates factors that have changed recent resource‐use intensity (the inverse of resource productivity) in Japan. Speci…