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Open Access

Retraction

Retraction: Regional impact of aging population on carbon dioxide emissions in China: Evidence from panel threshold regression (PTR)

  • The PLOS One Editors

The PLOS One Editors retract this article [1] due to concerns about:

  • Compromised peer review.
  • High similarity to a previously published article [2] from the same author group that was not adequately discussed or acknowledged in [1] or declared at the time this article was submitted.
  • Citation of multiple references that do not appear to support the corresponding cited statements, including References 3, 9, 11, 28, and 62.

The Editors have no evidence of any author involvement in the peer review concerns.

The Authors responded to acknowledge that Reference 62 (Lim et al. (1980)) was cited in error, and they stated that the other references were cited intentionally. The Editors do not consider this issue resolved.

YL, HX, BL, and LT did not agree with the retraction. NSM either did not respond directly or could not be reached.

References

  1. 1. Liang Y, Xinping H, Mazlan NS, Liang B, Ting L. RETRACTED: Regional impact of aging population on carbon dioxide emissions in China: Evidence from panel threshold regression (PTR). PLoS One. 2023;18(9):e0290582. pmid:37708104
  2. 2. Liang Y, Mazlan NS, Mohamed AB, Mhd Bani NYB, Liang B. Regional impact of aging population on economic development in China: Evidence from panel threshold regression (PTR). PLoS One. 2023;18(3):e0282913. pmid:36917591

Citation: The PLOS One Editors (2026) Retraction: Regional impact of aging population on carbon dioxide emissions in China: Evidence from panel threshold regression (PTR). PLoS One 21(1): e0341200. https://doi.org/10.1371/journal.pone.0341200

Published: January 20, 2026

Copyright: © 2026 The PLOS One Editors. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.