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Article analysis:

The article is generally reliable and trustworthy, providing an overview of the current state of knowledge regarding the use of HBIs and sterols for reconstructing past sea-ice distributions in the Arctic Ocean. The authors provide evidence for their claims by citing relevant studies, which adds credibility to their arguments. Additionally, they acknowledge potential biases that may arise due to high continental run-off, which is important for understanding the limitations of their findings. However, there are some points that could be further explored or discussed more thoroughly. For example, while the authors discuss how global warming has impacted sea-ice cover in the Arctic region, they do not explore any potential counterarguments or alternative explanations for this phenomenon. Additionally, while they cite several studies to support their claims, it would be beneficial if they provided more detailed information about these studies (e.g., methodology used). Finally, it would also be helpful if they discussed any potential risks associated with using HBIs and sterols as proxies for reconstructing past sea-ice distributions in more detail.