Global cumulative CO2 emissions 1750-2022, by region
By the end of 2022, the United States had emitted more than 425 billion metric tons of carbon dioxide (GtCO₂) into the atmosphere from fossil fuels and industry since the Industrial Revolution began. By 1990, the U.S. had emitted roughly 250 GtCO₂. By comparison, China had produced 43 GtCO₂ during the same time frame. However, China's emissions have soared in recent decades due to rapid economic development, and by 2022 the country's cumulative emissions had reached roughly 260 GtCO₂.
Combined, the United States and China have been responsible for almost 40 percent of global CO₂ emissions since 1750.