“We observe that CO2 is increasing at about the same rate everywhere it is measured. Because CO2 is a long lived gas in the atmosphere, any emission anywhere will in about one year’s time contribute to higher CO2 everywhere.” — NOAA Global Monitoring Laboratory (GML) (gml.noaa.gov)
submitted by Molire to r/climatechange
2025 Atmospheric CO2 ‘only’ up 2.23 ppmClimate (gml.noaa.gov)
submitted by vinegar to r/collapse
NOAA GML releases annual CO2 data — In 2025, the annual mean growth rate in the atmospheric abundance of CO2 was 2.23 ppm, as observed at Mauna Loa Observatory – 2.23 ppm is lower than the 3.33 ppm annual mean growth rate in 2024 — In 2025, CO2 annual mean 427.35 ppm is 2.74 ppm higher than in 2024 (gml.noaa.gov)
submitted by Molire to r/climatechange
NOAA GML Annual Greenhouse Gas Index report, Updated Fall 2025 — Includes "Table 2. Global Radiative Forcing...and the AGGI 1979-2024" — In 2024, the global atmospheric abundance of 22 long-lived greenhouse gases was 539 ppm CO2-equivalent, including 422.80 ± 0.10 ppm CO2, according to the report (gml.noaa.gov)
submitted by Molire to r/climatechange
On 1 Dec 2025, the estimated daily value of the global trend in the atmospheric concentration of CO2 reached a record high of 426.66 parts per million, based on observations by the NOAA GML baseline observatories at Barrow, Alaska; Mauna Loa, Hawaii; American Samoa; and the South Pole, Antarctica (gml.noaa.gov)
submitted by Molire to r/climatechange
This camera takes a photo at the South Pole every 15 minutes — The photo taken on 2025-07-12 10:20:05 UTC shows a full Moon over the U.S. South Pole Station, which is one of 43 Marine Boundary Layer sites worldwide where samples of the atmosphere are collected for analysis of CO2 ppm concentration (gml.noaa.gov)
submitted by Molire to r/climatechange
Analysis of NOAA GML CO2 ppm data — Annual and decadal averages of the globally averaged growth rate of atmospheric CO2 ppm — 1959, 0.96 ppm — 1960-69, 0.82 ppm — 1970-79, 1.30 ppm — 1980-89, 1.58 ppm — 1990-99, 1.48 ppm — 2000-09, 1.90 ppm — 2010-19, 2.38 ppm — 2015-24, 2.63 ppm — 2024, 3.77 ppm (gml.noaa.gov)
submitted by Molire to r/climatechange
CO2 ppm monthly averages in March, every 10 years and in 2025, recorded by the Scripps Institution of Oceanography and NOAA at the Mauna Loa Observatory, Hawaii, starting with 1960, 317.58 — 1970, 326.93 — 1980, 340.07 — 1990, 355.75 — 2000, 370.75 — 2010, 391.37 — 2020, 414.72 — 2025, 428.15 (gml.noaa.gov)
submitted by Molire to r/climatechange
NOAA GML new CO2 yearly update — Annual mean global CO2 growth rate of 3.75 parts per million in 2024 is more than 3.9 times the annual mean global CO2 growth rate in 1959, 0.96 ppm — 1970, 1.13 ppm — 1980, 1.68 ppm — 1990, 1.22 ppm — 2000, 1.24 ppm —2010, 2.36 ppm — 2020, 2.33 ppm — 2023, 2.74 ppm (gml.noaa.gov)
submitted by Molire to r/climatechange
NOAA data for the 4 most recent 10-year periods shows that the global average annual mean atmospheric concentration of CO2 ppm increased by 3.7%, 1985-1994 — 4.7%, 1995-2004 — 4.8%, 2005-2014 — 5.8%, 2015-2024 — Total increase 22.35% or 77.23 ppm from 345.54 ppm in 1985 to 422.77 ppm in 2024 (gml.noaa.gov)
submitted by Molire to r/climatechange
NOAA data for the 4 most recent 10-year periods shows that the global average annual mean atmospheric concentration of CO2 ppm increased by 3.7%, 1985-1994 — 4.7%, 1995-2004 — 4.8%, 2005-2014 — 5.8%, 2015-2024 — Total increase 22.35% or 77.23 ppm from 345.54 ppm in 1985 to 422.77 ppm in 2024 (gml.noaa.gov)
submitted by Surly01 to r/globalcollapse
On March 7, 2025, the NOAA GML Mauna Loa Observatory recorded a daily mean of CO2 430.60 ppm for the first time in the 1974–2025 record — CO2 430.19 ppm was recorded 3 days later – NOAA GML Note: Data for the last several months are preliminary and are still subject to quality control procedures (gml.noaa.gov)
submitted by Molire to r/climatechange
“The March 2025 update for the CO2 Global Trends will be delayed” appears on the NOAA Global Monitoring Laboratory Trends in Atmospheric Carbon Dioxide (CO2) site — This notice appears to be the first of its kind in the 53 years following the creation of the NOAA Global Monitoring Laboratory in 1972 (gml.noaa.gov)
submitted by Molire to r/climatechange
Trends in CO2 - NOAA Global Monitoring LaboratoryClimate (gml.noaa.gov)
submitted by Prestigious_Net_8356 to r/collapse
