Fig. 4: Map of differences between single-region (U.S.-based) and multiregional EEIO models.
From: The importance of multiregional accounting for corporate carbon emissions
Shaded colors indicate country-level differences in emissions when estimating upstream emissions of CDP-reporting companies using the multiregional model instead of a single-region (U.S.) model. In total, the multiregional model estimates 2.0 GtCO2e more emissions worldwide than the single-region model, but international supply chains and higher emissions-intensities of production in China lead to much greater emissions in China (+973 MtCO2e), and somewhat lower emissions in areas which rely more heavily on low-carbon sources of energy (e.g., France, Brazil, and the U.K.). Arrows highlight the largest international transfers of emissions embodied in these companies’ upstream supply chains that are missed by a single-region model. Made with Natural Earth base map.
