Author Correction: 2023 Summer Warmth Unparalleled Over the Past 2,000 Years Correction to: Nature (https://doi.org/10.1038/s41586-024-07512-y), Published Online: 14 May 2024 In the initial version of the article, Table 1 contained an error regarding the mean and 95% confidence range for the year 246 CE. Due to a typographical mistake, the values for 242 CE were erroneously listed instead of those for 246 CE. The correct mean temperature for 246 CE is +0.89 °C, with a 95% confidence range of +0.01 °C to +1.68 °C. These revised values have now been updated in Table 1. Additionally, we have corrected the typographical error by changing the reference from 246 CE to 242 CE where appropriate. Both the HTML and PDF versions of the article have been updated to reflect these changes. It's important to note that the mean values for 242 CE (+0.88 °C) and 246 CE (+0.89 °C) are statistically indistinguishable. We express our gratitude to Dr. Samuli Helama for identifying and bringing this error to our attention. All authors are fully aware of and in agreement with this correction. Author Information Authors and Affiliations: - Jan Esper and Max Torbenson: Department of Geography, Johannes Gutenberg University, Mainz, Germany - Jan Esper and Ulf Büntgen: Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic - Ulf Büntgen: Department of Geography, University of Cambridge, Cambridge, UK - Ulf Büntgen: Department of Geography, Masaryk University, Brno, Czech Republic Corresponding Author: - Jan Esper Rights and Permissions - Reprints and permissions available at: https://www.nature.com/reprintsandpermissions/ For further information or inquiries, please contact Jan Esper. Article Citation: - Esper, J., Torbenson, M., & Büntgen, U. (2025). Author Correction: 2023 Summer Warmth Unparalleled Over the Past 2,000 Years. Nature. https://doi.org/10.1038/s41586-025-09095-8 Published: - 09 May 2025 DOI: - https://doi.org/10.1038/s41586-025-09095-8