{"version":"1.0","type":"rich","title":"fresh block","description":"This visualization maps urban population growth from 2015 to 2030 using a globe with dots positioned by latitude and longitude from cities.csv. Canvas rendering draws the world map and animated growing circles sized by projected population, while SVG overlays provide hover interactivity. D3 v4 powers the geographic projections and data-driven transitions, with each city represented by a circle that scales from its 2015 to 2030 population estimate, offering a comparative view of urban expansion across countries.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-f1da25a7f4dc9b6428bf0444eac3107d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}