Measuring the Impact of Data Centers in the United States Economy: Monetary Damage from Air Pollution and Greenhouse Gas Emissions

This paper quantifies the environmental externalities associated with electricity consumption by data centers in the United States, focusing on damages from local air pollution and greenhouse gas (GHG) emissions. Using facility-level data for approximately 2,800 operational data centers in 2025, combined with electricity grid characteristics and emissions data, the analysis estimates pollution impacts through the AP4 integrated assessment model and applies the social cost of carbon for GHG valuation. Results indicate that data centers consume roughly 250 TWh of electricity—about 5–6% of U.S. generation—and generate approximately $25 billion in gross external damages (GED), with a range of $10–$33 billion. These damages are highly geographically concentrated, with Texas and Virginia accounting for 30% of the national total. While GED comprises about 5% of industry GDP, this ratio varies widely across states, exceeding GDP in some regions. Planned data center expansion could increase electricity demand and associated damages by up to 85% in the near term. Despite these environmental costs, preliminary comparisons suggest that the damages attributable to AI-related energy use are small relative to potential productivity gains.