GX & Decarbonization Research

Nyo Me Htun, Toshiaki Owari, Satoshi Suzuki +11

This study develops a multi-sensor machine learning framework integrating UAV multispectral imagery and LiDAR data to estimate living biomass carbon stocks in managed forests in Hokkaido, Japan. XGBoost achieved the highest accuracy (R2=0.8…

Citra Endah Nur Setyawati, Benjamin McLellan

This study analyzes hydrogen's role in ASEAN's energy transition using an integrated MLP and SNM framework. Based on government documents and literature, it finds that climate commitments and global hydrogen narratives pressure fossil-fuel …

Kokubu, Hiroyuki

A quarterly snapshot of GX disclosure metrics machine-extracted from integrated and sustainability reports of TSE Prime-listed companies, covering Scope 1/2/3 emissions, SBT status, TCFD disclosure, CDP score, renewable ratio, internal carb…

Shimoda Y.

This study evaluates decarbonization scenarios for Japan's residential sector using bottom-up simulations of energy end-use demand in 2050. It identifies energy management requirements from combinations of efficiency, electrification, and r…

Shin‐ichi Fukuda, Akio Ino

This paper analyzes the fiscal sustainability of transition finance, using Japan's GX Economy Transition Bonds as a case study. It evaluates the government's fiscal burden and the inducement effects on private investment, examining the feas…

Kokubu, Hiroyuki

EDINET Replay is a toolkit that retrieves official filings from Japan's FSA EDINET system, preserves original artifacts, resolves XBRL via Arelle, and exports provenance-preserving facts with traceable references. It prioritizes faithful re…

Sharif Rahimov, Furugh Odinazoda

This paper analyzes fiscal instruments for financing the green transition in Tajikistan, systematizing tax incentives from the 2024 Tax Code amendments, including import exemptions for solar equipment and accelerated depreciation for renewa…

Akio Kasuga

This paper quantifies the contribution of the demand side (designers, contractors, owners) to CO2 reduction in structural concrete. Analyzing GCCA's net-zero roadmap and Japanese NIES data, it clarifies the reduction sharing between supply …

Hayate Irie, Tetsuo Yamada

This study proposes a decision support model integrating supplier selection and disassembly part selection to optimize CO2 reduction and cost in global supply chains. Using 3D-CAD and LCI database, a BOM is built, and 0-1 integer programmin…

Mark Fenwick, Paulius Jurčys

This paper argues that the 'green value' of sensor-generated data is underutilized in climate action, proposing a user-held data model where data belongs to users. It explores applications in green lifestyles, smart cities, and green innova…

中尾 悠利子, 國部 克彦

This document analyzes comment letters and interviews on SSBJ standards, identifying practical challenges. It contributes to the development of Japan's disclosure framework.

國部 克彦

This paper critically examines the dysfunction of materiality in sustainability disclosure standards, arguing that current frameworks fail to provide value-relevant information to investors. It highlights challenges and suggests improvement…

Li Lanchun, Lanchun Li

This paper analyzes the strategic importance of nuclear fusion for carbon neutrality, comparing development strategies and technical roadmaps of the US, UK, Germany, Japan, and others. It highlights how government funding drives private inv…

Shoko SUZUKI, Jungmin KIM, Momoka WATANABE +6

This paper proposes decarbonization methods for detached houses that incorporate dynamic CO2 emission factors. By reflecting the time-varying carbon intensity of electricity, it enables more accurate assessment of emission reduction effects…

Yutaka IWASAKI, Takuro Kobashi, Yukari Fuchigami +1

This study proposes a scenario-based framework to quantify year-by-year impacts of gradual rooftop PV, EV, and V2H deployment from 2018 to 2050. Using Suita City, Japan, it assesses five dimensions: CO2 reduction, cost savings, self-consump…

Yamada, Hirohito

This dataset provides 2023 solar irradiance, household load, wind speed, and EV charging data for a DC microgrid simulator in Sendai, Japan. It supports research on renewable integration, battery management, and disaster-resilient distribut…

Norikuni Horiguchi

This paper proposes a fundamental shift from generation-cost to storage-cost-based energy systems, introducing zero-loss transmission, battery tankers, and mother storage bases. These innovations enable electricity logistics and enhance nat…

M. Kim, J. Yoo

This study re-examines the conflicting findings on ESG and tax avoidance, attributing them to methodological issues: measurement differences, ESG index heterogeneity, and endogeneity. Using random forest and double machine learning, it show…

Mana Matsuda, Takuma Yamafuji, Kei Shiomi +4

This study uses simultaneous CO2 and CO observations from GOSAT-2 (2018-2021) to estimate emission enhancements over 69 global cities, finding that the CO2-CO relationship follows a Modified Environmental Kuznets Curve (MEKC). Large discrep…

(著者不明)

This study explores the potential of using the J-Credit scheme to certify methane emission reductions from extended mid-summer drainage in paddy fields, combined with ICT-based monitoring and management. It suggests a pathway for carbon cre…