This map shows the global distribution of missing migrants, with each circle sized according to the reported total number of dead and missing individuals. The visualization uses a natural Earth projection to render land masses, graticules, and country interiors as SVG paths. Circle radii are scaled using `d3.scaleSqrt` based on data loaded from a CSV file, while geographic features are processed from a TopoJSON source using `topojson.feature` and `topojson.mesh`.