China vs United States: Share of global CO₂ consumption-based emissions

China

28.5%

in 2023

United States

14.3%

in 2023

China rank

1st

United States rank

2nd

Share of global CO₂ consumption-based emissions over time

China currently reports 28.5% against 14.3% in United States, a difference of 14.2%.

That makes China's figure about 2.0 times United States's.

The two have swapped places 1 time across 34 shared years of data; in 1990 it was United States ahead.

China ranks 1st and United States ranks 2nd of 117 countries.

Indicator: Share of global CO₂ consumption-based emissions
Unit: %
Source: Global Carbon Budget (2025) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 120 places, 4,064 data points, 1990–2023
Last refreshed: 07 August 2026

Annual consumption-based emissions of carbon dioxide (CO₂), measured as a percentage of global consumption-based emissions of CO₂ in the same year.