This example renders a world map using D3.js and the TopoJSON library from the `world-atlas` dataset. It draws a sphere as a blue background and countries as light-green filled paths with subtle black strokes. The code uses `d3.geoPath` with a `geoNaturalEarth1` projection, and it loads geographic data from a remote JSON file. It demonstrates how to project geographic coordinates and display vector-based map features in an SVG container.