Pollution emissions and damages plotted against population.

<p>The left panel of Fig 1 shows a scatterplot of annual, settlement-level CO₂ emissions (circles) and aggregated local pollution emissions (triangles) against population for all areas; the solid, red line is the best fit line between CO₂ and population and the dashed, blue line is the best fit line between local air pollution and population. The right panel of Fig 1 plots annual, settlement-level gross emissions damages (GED) from CO₂ emissions (circles) and aggregated local pollution emissions (triangles) against population; the solid, red line is the best fit line between the GED from CO₂ emissions and population and the dashed, blue line is the best fit line between the GED from local air pollution and population.