{"version":"1.0","type":"rich","title":"Untitled","description":"This visualization uses a natural Earth projection to display global population estimates for 2018, with countries colored to indicate data presence or absence. Circles sized by population are plotted at country centroids using a square-root scale, with a legend showing the population scale. The code leverages D3 modules including `geoPath`, `geoNaturalEarth1`, `geoCentroid`, `scaleSqrt`, and `zoom` for interactivity. Data comes from a UN population estimates CSV and a TopoJSON world atlas, processed via `topojson.feature`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/412a9cc34e764d829ccbdbe9cba6a911?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}