Climate · wind
Atmospheric CO₂
Daily CO₂ concentration measured at Mauna Loa Observatory, Hawaii.
ppm427.80+0.20%24h
ppm426.95ppm427.80
Stale data
Prev
ppm426.95
Delta
ppm0.85
Source
NOAA Global Monitoring Laboratory
Freq
daily
Value Over Time
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24H Summary
Previous Valueppm426.95
24h Change+ppm0.85
24h Change %+0.20%
All Time Highppm427.80
All Time Lowppm427.80
Why It Matters
CO₂ concentration is the single most important number in climate science. Before industrialisation it sat at 280 ppm. We passed 420 ppm in 2023. Every fraction of a degree of future warming traces back to this number.
Global intensity0.20%
Current427.8ppm
24h change0.85
CategoryClimate
SourceNOAA Global Monitoring Laboratory
glow intensity reflects 24h volatilitycaptured 8/14/2026
Data Source
NOAA Global Monitoring LaboratoryPrimary Source
Reliability
High
Websitegml.noaa.gov
Recent Data History
| Date | Value (ppm) | Change % |
|---|---|---|
| Aug 14, 2026 | ppm427.80 | 0.20% |
| Aug 13, 2026 | ppm426.95 | 0.00% |
Technical Details
CategoryClimate
Sub Categoryclimate
Update FrequencyDaily
Display Typenumber
Is RealtimeNo
Is ModeledNo
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<iframe src="https://www.cognitium.in/embed/metrics/co2-ppm?theme=dark&size=md&show_sparkline=true" width="260" height="161" frameborder="0" style="border-radius:12px;"></iframe>All times are in UTC. Data may be revised. Always refer to source for official statistics.