FILE ON NOAACompany

NOAA

May 2025 seasonal peak CO2 concentration was 430.5 ppm (NOAA) / 430.2 ppm (Scripps)1. atmospheric CO₂ rising every year2.

2 SOURCES · 4 DOCUMENTED FACTS · OPENED 2026-07-24 · UPDATED 2026-07-24
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May 2025 seasonal peak CO2 concentration was 430.5 ppm (NOAA) / 430.2 ppm (Scripps)

Title and Executive Summary
“May 2025 (seasonal peak, Mauna Loa) | **430.5 ppm** (NOAA) / 430.2 ppm (Scripps)”
SOURCETitle and Executive Summary·stored copy on file
VERIFIED — a word-for-word match in the stored source

atmospheric CO₂ rising every year

Research Brief: A McLuhanesque Critique of Mark Carney
“atmospheric CO₂ rising every year (418ppm in 2022, 421 in 2023, 424 in 2024, 427 in 2025 per NOAA)”
VERIFIED — a word-for-word match in the stored source

NOAA Global Monitoring Laboratory data show the global mean atmospheric CO₂

Title and Executive Summary
“NOAA Global Monitoring Laboratory data show:”
SOURCETitle and Executive Summary·stored copy on file
VERIFIED — a word-for-word match in the stored source

Atmospheric CO₂ concentrations rose from 399.4 ppm to 422.8 ppm

Title and Executive Summary
“Atmospheric CO₂ concentrations rose from a 2015 global average of 399.4 ppm to 422.8 ppm in 2024”
SOURCETitle and Executive Summary·stored copy on file
VERIFIED — a word-for-word match in the stored source