Projected changes in U.S. electricity expenditures by 2080–2099 compared to today, assuming continued increases in carbon dioxide emissions from fossil fuels. For each county, the fill color indicates the median percentage change in projected spending on electricity as a result of rising global temperatures. The outline color indicates the level of certainty of the projections. Black outlines indicate projections with the greatest confidence; no outline indicates a bit less confidence. Projections for counties with thin white outlines have the lowest confidence.