Fig. 2: Schematic representation of the interconnections between climate impact-drivers, air pollutants, and geographic regions.

This diagram illustrates the multidimensional relationships among climate impact-drivers (CIDs), air pollutants, and regions, based on literature frequency. The left panel presents a word cloud of meteorological factors, grouped into four CID categories (heat and cold, wind, wet and dry, and others), with text size and color intensity indicating relative prevalence in the literature. The central flow diagram traces the directional influence from CIDs to associated air pollutants and then to regions where these pollutants are most studied; the width of each connection reflects the proportion of studies reporting both ends. The right panel displays a word cloud of countries, where larger and darker labels correspond to regions with a higher volume of research on climate change impacts on air pollution.