A world map visualizes global migration deaths and disappearances, with each incident rendered as a semi-transparent circle scaled by the reported total dead and missing. The map uses the natural Earth projection, country boundaries, and graticules drawn via `d3.geoPath` and `d3.geoNaturalEarth1`. React manages the component state, while D3 loads CSV data and TopoJSON world atlas geometry, with circle radii determined by a `scaleSqrt` function. SVG output displays the geographic context and proportional incident markers.