Releases / United States
Mauna Loa weekly mean atmospheric CO2 (NOAA Global Monitoring Laboratory) release schedule and API
NOAA GML. Source: NOAA Global Monitoring Laboratory (Mauna Loa CO2, Xin Lan et al.). Licence: public-domain.
Next releases
| Release | UTC | Agency local time |
|---|---|---|
| Weekly Mauna Loa CO2 | 05:00 local (UTC-07:00) | |
| Weekly Mauna Loa CO2 | 05:00 local (UTC-07:00) | |
| Weekly Mauna Loa CO2 | 05:00 local (UTC-07:00) | |
| Weekly Mauna Loa CO2 | 05:00 local (UTC-07:00) | |
| Weekly Mauna Loa CO2 | 05:00 local (UTC-07:00) | |
| Weekly Mauna Loa CO2 | 05:00 local (UTC-07:00) |
From the agency's own calendar, as of 2026-11-13. Reschedules and cancellations are in the API.
How fast it reaches the API
| Release | Measured | Median | Fastest | Slowest | Missed |
|---|---|---|---|---|---|
| CO2 | 1 | 88.4 min | 88.4 min | 88.4 min | 0 |
Time from the agency publishing to the data being on our feed, for releases caught live in the last 30 days. Every release counts, including slow ones and misses.
Get it by API
Series ids: WLD.CO2.MLO.NSA.
# pip install econfeed-client
from econfeed_client import Client
ef = Client() # ECONFEED_API_KEY from the environment
for e in ef.calendar(days=90, source="us_noaa_co2"):
print(e.scheduled_at, e.release_name, e.reference_period)
# add as_of= for what was known then
page = ef.observations("WLD.CO2.MLO.NSA", start="2024-01")
# pushed seconds after release
for ev in ef.stream(sources=["us_noaa_co2"]):
print(ev.type, ev.data.release_id)REST: GET /v1/calendar?source=us_noaa_co2, GET /v1/series/WLD.CO2.MLO.NSA/observations. Webhooks: filter on source us_noaa_co2.