Comments on the manuscript" Influence of Atmospheric Circulation on the Interannual Variability of Transport from Global and Regional Emissions into the Arctic" by Zheng et al.

The manuscript is well written. It reports the influence of global and regional emissions on the Arctic. It is suitable for the Journal and can be published. I suggest minor changes before publication.

In the introduction section, the references used are old. Recent references should be mentioned. There are several papers on trajectory analysis of atmospheric transport to the Arctic. The results from these studies are also interesting.

 The results presented in the study are based on WACCM6 model simulations. There may be biases in model transport processes that vary with the model.  It will affect the atmospheric circulation. You may mention it.

A schematic depicting overall results is needed since the result section is descriptive and quantitative.

  Conclusion section is lengthy. Concise bullets points of the important results should be given.