This example displays a world map using an equirectangular projection, with countries rendered as white paths with green strokes on a teal sphere. It loads geographic data from the world-atlas TopoJSON file, converting it to GeoJSON with `topojson.feature` and projecting it via `d3.geoEquirectangular` and `d3.geoPath`. The map supports hover interactions, highlighting countries in green when the mouse passes over them.