Climate indicators · NOAA Global Monitoring Laboratory
Methane (CH₄)
1,935 ppb
June 2026, global monthly mean. Annual mean 1984: 1,645 ppb. 2025: 1,936 ppb.
1,6001,7001,8001,9002,00019841994200520162026
What it measures
The share of methane in the air, in molecules per billion, averaged over a global network of remote sampling sites.
Why it matters
Methane traps far more heat per molecule than CO₂ but breaks down within about a decade. Cutting leaks from oil, gas, farming and landfills slows warming quickly.
Source and method
NOAA Global Monitoring Laboratory. Global monthly means as published; the latest months are preliminary and can be revised.
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