Files of Keeling curve - sciencehub-team/keeling-curve

Keeling curve

Monthly mean CO₂ in the air at Mauna Loa, Hawaii, from March 1958, as NOAA's Global Monitoring Laboratory publishes it, with the notebook that reads and plots it.

File	What it holds
`data/co2_mm_mlo.csv`	NOAA's file of 9 October 2026, unchanged: year, month, decimal date, monthly mean, deseasonalized, days, sd, uncertainty

Source: https://gml.noaa.gov/ccgg/trends/ (NOAA GML); before May 1974, Scripps Institution of Oceanography, https://scrippsco2.ucsd.edu/.
Terms: NOAA makes the data freely available and asks to be cited: Lan, X., Tans, P. and Thoning, K. W., Trends in globally-averaged CO₂ determined from NOAA Global Monitoring Laboratory measurements.
Read it: sh.load("sciencehub-team/keeling-curve").load_co2(), or pd.read_csv("sciencehub://sciencehub-team/keeling-curve/data/co2_mm_mlo.csv", comment="#").

Use this data

pandaspolarsDuckDBRHugging Facesciencehub

import pandas as pd

df = pd.read_csv(
    "https://sciencehub.sh/sciencehub-team/keeling-curve/raw/data/co2_mm_mlo.csv",
    comment="#",
)

import polars as pl

df = pl.read_csv(
    "https://sciencehub.sh/sciencehub-team/keeling-curve/raw/data/co2_mm_mlo.csv",
    comment_prefix="#",
)

SELECT *
FROM read_csv(
    'https://sciencehub.sh/sciencehub-team/keeling-curve/raw/data/co2_mm_mlo.csv',
    comment = '#'
);

df <- readr::read_csv(
    "https://sciencehub.sh/sciencehub-team/keeling-curve/raw/data/co2_mm_mlo.csv",
    comment = "#"
)

from datasets import load_dataset

ds = load_dataset(
    "csv",
    data_files="https://sciencehub.sh/sciencehub-team/keeling-curve/raw/data/co2_mm_mlo.csv",
    comment="#",
)

import sciencehub as sh

keeling_curve = sh.load("sciencehub-team/keeling-curve")
path = keeling_curve.path("data/co2_mm_mlo.csv")

sciencehub-team/keeling-curvePublic

Keeling curve