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. 2021 Feb 5;12:825. doi: 10.1038/s41467-021-21054-1

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Map of Western Siberia with a location of the Ob’, Pur, and Taz River basins (red line), b permafrost extent⁵¹, c partial pressure of carbon dioxide (pCO₂, ppm) in the Ob’ main channel (red gradient bar), distribution of main river network (blue lines)¹ and location of 58 study rivers (gray circles), d lake abundance² and location of 6 sites (gray triangles) with 89 study lakes.