This example shows a world map rendered as an SVG, with countries filled in light green against a blue spherical backdrop. It uses D3.js version 5 and the TopoJSON library to load and convert world-atlas data (110m resolution) into GeoJSON features. The map is drawn with `d3.geoPath` and a natural Earth projection (`d3.geoNaturalEarth1`), while a separate path renders the globe’s sphere outline. Country boundaries appear with a subtle black stroke, and the map updates once the external JSON data loads.