Extension and update of multiscale monthly household carbon footprint in Japan from 2011 to 2022

Household consumption significantly contributes to greenhouse gas emissions as it is the largest component of final demand in the national accounting system. Nevertheless, there is an apparent lack of comprehensive and consistent datasets detailing emissions from household consumption. Here, we expand and update Japan's multiscale monthly household carbon footprint from January 2011 to September 2022, combining data from government statistics and surveys. We constructed a dataset comprising 37,692 direct and 4,852,845 indirect emission records, covering households at the national, regional, and prefectural city levels. The dataset provides critical spatiotemporal information that allows for revealing carbon emission patterns, pinpointing primary sources of emissions, and discerning regional variances. Moreover, the inclusion of micro-scale carbon footprint data enables the identification of specific consumption habits, thereby regulating individual consumption behavior to achieve a low-carbon society.

Automated summary

Household consumption plays a significant role in greenhouse gas emissions, but there is a lack of comprehensive and consistent data. In this study, we expand and update Japan's monthly household carbon footprint using government statistics and surveys, creating a dataset with 37,692 direct emission and 4,852,845 indirect emission records. This dataset provides critical spatiotemporal information for analyzing emission patterns and regional variances, as well as identifying specific consumption habits for regulating individual behavior towards a low-carbon society.