A choropleth world map visualizes 2024 national population estimates, with countries shaded on a yellow-green scale from light to dark by population size. The visualization employs an SVG rendering with the `d3.geoNaturalEarth1` projection, `d3.geoPath` for map geometry, and `d3.axisBottom` for a gradient legend. Population data is joined to country features by name, with missing values shown in grey. Tooltips display the exact population count on hover. The map uses TopoJSON data from the world-atlas package and D3 v7.