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Global CO2 growth signals (growth rate, acceleration, records)

Monthly global CO2 accumulation signals from NOAA Global Monitoring Laboratory measurements (1974 ->): the de-seasonalized global monthly mean with 3-month momentum, year-on-year change, 30-month change volatility, 3-sigma anomaly flags, naive-drift forecasts, the annual growth rate (ppm/yr and %), growth acceleration, a rolling 10-year trend slope, record-high flags and an acceleration flag. The pace-of-accumulation lens on the carbon cycle — levels always rise, so the growth rate is the signal. Companion to us-carbon-accountability-signals (company emissions) and us-climate-signals (city temperatures). Rows normalized to country_code WLD (World). Raw data: NOAA Global Monitoring Laboratory.

Source: Global CO2 Growth Signals (derived)570 rowsUpdated: 9/22/2026
co2carbonclimategreenhouse-gasnoaagrowth-rateaccelerationmomentumanomaly-detectionforecastingsignals

Quality

99.3

Attribution

NOAA Global Monitoring Laboratory; signals by Frontier Data Hub

Schema

ColumnTypeDescription
datestringFirst day of the observation month (NOAA GML co2_mm_gl.txt year/month fields).
countrystring
country_codestring
series_idstringCO2_GML: global monthly mean atmospheric CO2 from the NOAA GML cooperative air-sampling network (co2_mm_gl.txt).
series_labelstringGlobal monthly mean atmospheric CO2, de-seasonalized, in parts per million (NOAA GML).
valuefloatDe-seasonalized global monthly mean CO2 mole fraction in dry air, parts per million (NOAA GML co2_mm_gl.txt column 5).
momentum_3mfloat
yoy_changefloat
volatility_30dfloat
anomaly_flaginteger
forecast_1mfloat
growth_yoyfloat
growth_rate_yoy_pctfloat
growth_accelerationfloat
trend_slope_10yfloat
record_high_flaginteger
accel_flaginteger

Sample rows

datecountrycountry_codeseries_idseries_labelvaluemomentum_3myoy_changevolatility_30danomaly_flagforecast_1mgrowth_yoygrowth_rate_yoy_pctgrowth_accelerationtrend_slope_10yrecord_high_flagaccel_flag
1979-01-01WorldWLDCO2_GMLGlobal monthly mean atmospheric CO2, de-seasonalized (NOAA GML, ppm)0.1000
1979-02-01WorldWLDCO2_GMLGlobal monthly mean atmospheric CO2, de-seasonalized (NOAA GML, ppm)0.09000
1979-03-01WorldWLDCO2_GMLGlobal monthly mean atmospheric CO2, de-seasonalized (NOAA GML, ppm)0.1010
1979-04-01WorldWLDCO2_GMLGlobal monthly mean atmospheric CO2, de-seasonalized (NOAA GML, ppm)0.110.009999999999999995010
1979-05-01WorldWLDCO2_GMLGlobal monthly mean atmospheric CO2, de-seasonalized (NOAA GML, ppm)0.04-0.049999999999999996000

Download sample data

Download the full sample snapshot for this dataset (sample rows, not the complete dataset).

Use with an LLM

Point any LLM at the metadata endpoint — the documentation above is machine-readable too (JSON-LD + Croissant).

cURL

curl "https://datazimuts.com/v1/datasets/co2_growth_signals/global_co2_growth_signals" | jq '{title, rows, columns_count, license}'

Python

import requests

ds = requests.get("https://datazimuts.com/v1/datasets/co2_growth_signals/global_co2_growth_signals").json()
print(ds["title"], ds["rows"], "rows")

# Sample rows for an LLM context window
for row in ds.get("sample_rows", [])[:5]:
    print(row)

API endpoint: https://datazimuts.com/v1/datasets/co2_growth_signals/global_co2_growth_signals

Tip: fetch /llms.txt for the full machine-readable catalog.