# Source terms and attribution

NOAA-produced government numerical data are in the US public domain; raw headers request source credit. Credit NOAA GML and Lan, Tans and Thoning with the cited dataset version. No NOAA endorsement is implied and no logos or third-party media are included. Original Meplar charts and code are separate works; no new license for them is asserted here.

NOAA GML global CO₂ trends and citation: https://gml.noaa.gov/ccgg/trends/gl_data.html
NOAA within-year growth method: https://gml.noaa.gov/ccgg/trends/gl_gr.html
NOAA annual-mean CSV: https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_annmean_gl.csv
NOAA growth CSV: https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_gr_gl.csv
Dataset DOI: https://doi.org/10.15138/9N0H-ZH07

Data rights reference: https://www.noaa.gov/office-education/outreach-communication/faq