The role of carbon dioxide (CO₂) on global warming gained wide attention. Previous researches mainly focus on relationship between global average CO₂ concentrations and surface air temperature (SAT). Carbon satellites have proven that CO₂ concentrations have non-uniform spatio-temporal distributions. The relation between CO₂ concentrations from satellite observations and SAT is seldom reported. Climate network approaches have been successful to uncover topology structure and dynamics in the climate system. Here, we construct CO₂ concentrations network and SAT network based on the climate network approaches. By comparing the similarity of the properties between CO₂ concentrations network and SAT network, their relation has been investigated. We show that negative and positive links in CO₂ network have a strong correlation with that in the SAT network. These statistical structures yield a clear association with the pattern of Rossby waves. It is shown that the peaks of phase speeds associated with significant positive and negative weight links are similar, and are arranged in the group velocities of Rossby waves. Further analysis shows their strong correlations and similarity spatial patterns if the equator regions are excluded. In addition, their teleconnections follow similar climate processes, where Rossby waves exhibit dominance in the Southern Hemisphere. The results demonstrate the similar network properties between CO₂ and SAT can be partly related to the function of Rossby waves. Our work provides a new perspective with which to understand the relation between CO₂ concentrations and SAT, as well as climate system.

二氧化碳（CO ₂）在全球变暖中的作用受到广泛关注。先前的研究主要集中在全球平均CO ₂浓度与地表气温（SAT）之间的关系。碳卫星已证明CO ₂浓度具有不均匀的时空分布。很少报道卫星观测到的CO ₂浓度与SAT之间的关系。气候网络方法已经成功地揭示了气候系统中的拓扑结构和动力学。在此，我们基于气候网络方法构建了CO ₂浓度网络和SAT网络。通过比较CO ₂之间性质的相似性浓度网络和SAT网络，它们之间的关系已被研究。我们表明，CO ₂网络中的负向和正向链接与SAT网络中的正向链接具有很强的相关性。这些统计结构与罗斯比波的模式有着明显的联系。结果表明，与显着的正负权重链相关的相速度峰值相似，并排列在罗斯比波的群速度中。进一步的分析表明，如果排除赤道区域，它们的强相关性和相似性空间格局。此外，它们的遥相关遵循相似的气候过程，其中罗斯比波在南半球表现出优势。结果表明，CO ₂之间的网络性质相似SAT可能与Rossby波的功能有关。我们的工作为理解CO ₂浓度与SAT以及气候系统之间的关系提供了新的视角。