Between 2005 and 2023, U.S. carbon dioxide emissions fell by 20%, with per capita emissions dropping by 30%. All states saw declines, led by Maryland at 49%. Emissions declined again in 2024 but are expected to rise in 2025 as energy demand from AI data centers and electrification grows. Meanwhile, global climate politics show mounting skepticism, with many countries retreating from Paris Agreement commitments and U.S. leaders questioning net-zero targets.
