GX & Decarbonization Research

Tianjiao Cheng, Hiroshi Onoda

This study develops a break-even carbon pricing framework integrating life-cycle CO2 emissions and discounted annualized costs for two CCU routes (methanation and methanol synthesis) at a Japanese MSW incineration facility. Under 2024 and 2…

Shoichiro Hosomi, Soichiro Yamamoto

This study examines the association between CDP scores (climate change, water security, forests) and firm value (Tobin's Q) and profitability (ROA, ROE) using panel data of Japanese manufacturing firms from 2018 to 2023. Results show that t…

Takeshi Osawa, Narumasa Tsutsumida, Hideyuki Doi

This study evaluates satellite-derived total suspended matter (TSM) as a proxy for coastal blue-carbon distribution in Sagami and Suruga Bays, Japan. TSM showed significant negative correlation with distance from river estuaries and was hig…

Kaito Murakami, Yasunori Kikuchi, Norikazu Kumekawa +1

This study assesses life-cycle GHG emissions of biochar derived from water hyacinth in Ethiopia, comparing fuel and soil amendment uses. Soil amendment offers the greatest net reduction due to carbon sequestration. Using Japanese data adapt…

Nakashima T.

This paper assesses energy inputs and GHG emissions across the lifecycle of small-scale sugarcane farming and bioethanol production in Japan, examining the sustainability of bioethanol as a renewable energy source within local agricultural …

Zhao D.

This paper proposes a quantitative method to evaluate greenhouse gas emissions during the construction stage of asphalt pavement. It organizes emission factors for each construction process and calculates emissions based on actual construct…

Toshiro Semba, Atsuo Yoshida, Masakazu Saika +4

This study conducts a life cycle assessment of cotton, polyester, and blended T-shirts, using primary data from Japanese wet processing manufacturers. It finds that blended T-shirts have the highest carbon footprint, with wet processing acc…

Yamada, Hirohito

This dataset provides measured solar irradiance, household load, wind speed, and EV charging profiles for Sendai, Japan, in 2023. It supports research on DC microgrids, renewable integration, battery management, and disaster-resilient distr…

Nada Yimatsa, Yuta Watanabe, Morimaru Kida +9

This study quantified total ecosystem carbon (TEC) stocks in a 10-14 year mangrove restoration in Thailand, including soil to 3 m depth. TEC increased with stand age, with soil organic carbon comprising >80% of stocks. Including deep soils …

Kamsin K, Alin J, Kogid M +2

This study examines whether public debt can finance Japan's green transition, using ARDL and NARDL models to analyze relationships with economic growth, CO2 emissions, and renewable energy. Long-run relationships exist, but public debt has …

Cheng, Tianjiao, Onoda, Hiroshi

This release provides complete data and code for a time-resolved, region-sensitive climate assessment of thirteen CO2 capture, utilization, and recycling pathways for a Japanese municipal waste incinerator. It harmonizes pathways onto a fos…

Pathak, Anuj

This dataset supports the paper analyzing the deployment of direct air capture (DAC) to achieve India's net-zero target. It enables reproducibility and transparency of the reported results, including DAC scale, costs, and policy implication…

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 …