🇺🇸 United States of America's Greenhouse Gas Emissions

Key Messages

• Emissions: USA emitted around 6,280 megatonnes CO₂e in 2024, about 11% of the global total.
• Per person: Emissions were around 18.2 tonnes per person per year in 2024, rated extremely high on a scale where any level above zero adds warming.
• Trend: Emissions fell by roughly 38.3 megatonnes CO₂e a year over the ten years to 2024, a 0.6% yearly decline, slower than the 4% yearly decline the world needs to limit warming to around 1.7 °C.
• What drives it: CO₂ makes up around 80% of national emissions, methane 13%, F-gases 4% and nitrous oxide 4%.
• Historic responsibility: Since 1851, USA's emissions have produced around 672,000 megatonnes CO₂e of warming impact, about 17.2% of the global total, or around 25.2 tonnes per person per year population-weighted across the record.
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