Fig. 3: Sector-based individual city (N = 48) FFCO2 emissions relative difference (RD) between the Vulcan version 3.0 urban FFCO2 emissions and self-reported inventories (SRIs).
From: Under-reporting of greenhouse gas emissions in U.S. cities
Black: total emissions RD; error bars: total emissions RD range from Vulcan confidence interval; red: onroad emissions RD; green: stationary (residential + commercial + industrial) emissions RD; blue: other transportation (airborne + marine shipping + nonroad + railroad) emissions RD. RD calculated as [(Vulcan – SRI)/average (Vulcan, SRI)]. Scale capped at 100% RD. Not all sector categories were available in all cities; where individual sectors were missing in the SRIs, the aggregate category only sums those available in both Vulcan and SRI results (see Source data for additional details).
