A world map displays circles sized by the number of total dead and missing migrants, with data from a CSV of global migrant incidents. The visualization uses a natural Earth projection rendered as SVG via React, with D3’s `geoPath` and `geoGraticule` for map outlines. Circle radii are scaled using a square-root scale (`scaleSqrt`) based on the maximum value, and the map layers include land, interiors, and sphere boundaries.