This example displays a world map using a natural Earth projection, with countries rendered as green landmasses against a light blue spherical backdrop. The visualization loads TopoJSON world data from the world-atlas package, converts it to GeoJSON using `topojson.feature`, and draws the paths with `d3.geoPath` and `d3.geoNaturalEarth1`. It also appends a sphere path to frame the projection, all rendered as SVG elements.