Global annual GHG emissions shares 2022, by country
China accounted for 29 percent of global greenhouse gas (GHG) emissions in 2022, making it the world's largest emitter by far. The United States was the second-largest emitter, with a share of 11 percent. Combined, the six largest GHG emitters were responsible for more than 60 percent of the 53.8 billion metric tons of carbon dioxide equivalent (GtCO₂e) emitted in 2022.
