The forecast of air pollution-related total tax revenue in the U.S., expressed as a percentage of GDP, indicates a slight downward trend from 2024 to 2028. Starting at 0.52% in 2024, it remains stable into 2025, then decreases gradually to 0.50% by 2028. With no prior data for 2023 presented, year-on-year variation from 2024 to 2025 shows stagnation, while from 2026 onwards, there is a subtle decline annually. The five-year CAGR suggests a gentle negative trend in the air pollution-related tax revenue as a percentage of GDP.
Future trends to monitor include regulatory changes, technological advances in pollution control, shifting energy policies, and economic fluctuations which could significantly alter air pollution-related tax revenues. Environmental policies aimed at reducing air pollution could suppress the tax base, further influencing these trends.