This example displays a world map using the Natural Earth projection, with countries rendered as light green SVG paths and the ocean as a blue sphere. It loads geographic data from the World Atlas TopoJSON file, converting it to GeoJSON with the topojson `feature` function. The code uses D3 v5’s `geoNaturalEarth1` projection, `geoPath` for path generation, and `selectAll` to bind country features to SVG elements.