This example shows a world map with countries rendered in light green against a blue sphere, using a natural Earth projection. It loads geographic data from the world-atlas TopoJSON file, then converts it to GeoJSON features with the topojson `feature` method. D3’s `geoPath` and `geoNaturalEarth1` projection generate the SVG paths for each country, while a separate path outlines the globe. The visualization is a minimal, static map demonstrating basic D3 geospatial rendering.