Source states: "Monthly global surface air temperature [1] anomalies (°C) relative to 1991–2020 from January 1940 to December 2023, plotted as time series for each year. 2023 is shown with a thick red line while other years are shown with thin lines and shaded according to the decade, from blue (1940s) to brick red (2020s). Data source: ERA5. Credit: C3S/ECMWF."
It is envisioned that this chart will be relevant only to articles focusing on the specific year 2023. Please do not "update" as subsequent years' data becomes available; upload separate files for each year.
Uploaded a work by Copernicus Programme from {{cite web |title=The 2023 Annual Climate Summary / Global Climate Highlights 2023 |url=https://climate.copernicus.eu/global-climate-highlights-2023 |publisher=Copernicus Programme |archive-url=https://web.archive.org/web/20240109154027/https://climate.copernicus.eu/global-climate-highlights-2023 |archive-date=9 January 2024 |date=9 January 2024 |url-status=live }} with UploadWizard