This choropleth map displays world countries on a natural Earth projection, colored uniformly with a light green fill on a blue sphere. It uses the `geoNaturalEarth1` projection and `geoPath` from d3 to generate the geographic paths from TopoJSON world data. The visualization supports zooming and panning via the custom `zoom` event, while hovering over a country turns it red. Data is loaded from the world-atlas package, which provides both TSV metadata and TopoJSON geometry.