Japan vs United States: CO₂ emissions by fuel or industry type

Japan

11.36 million tonnes

in 2024

United States

135.34 million tonnes

in 2024

Japan rank

4th

United States rank

2nd

CO₂ emissions by fuel or industry type over time

United States currently reports 135.34 million tonnes against 11.36 million tonnes in Japan, a difference of 123.97 million tonnes.

That makes United States's figure about 11.9 times Japan's.

Across all 35 years both countries report, United States has been ahead every year.

Japan ranks 4th and United States ranks 2nd of 46 countries.

Indicator: CO₂ emissions by fuel or industry type
Unit: tonnes
Source: Global Carbon Budget (2025) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 46 places, 1,734 data points, 1904–2024
Last refreshed: 07 August 2026

Annual emissions of carbon dioxide (CO₂) from other industry sources, measured in tonnes.