{"version":"1.0","type":"rich","title":"missing migrants","description":"This visualization shows a world map with cities that have populations greater than 50,000, sourced from the Simplemaps World Cities Database. Each city appears as a small semi-transparent circle positioned by longitude and latitude. The map uses d3.geoPath with the geoNaturalEarth1 projection, rendering land masses, country boundaries, and graticules from the World Atlas TopoJSON. The React-based code loads the data with d3.csv and d3.json, then draws the SVG marks.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c18a1f30d8124b61b9a716aa3d2fedc9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}