In 2025, the U.S. leads in real GDP with $23.83 trillion, approximately 23% lower than its nominal GDP of $30 trillion. Since 2024, its real GDP has grown modestly by 2.02%, up from $23.36 trillion.
The IMF How-To Note explains a practical method for integrating rising temperatures into long-term GDP projections using climate-model scenarios and empirically estimated impacts on economic growth.
GDP (PPP) measures the total economic output of a country, adjusted for cost of living and purchasing power, to allow fair comparisons between nations. According to the World Bank, the GDP (PPP) of ...