{"version":"1.0","type":"rich","title":"Multi-Series Chart — CO₂ and Renewables 2025","description":"This example shows a multi-series combo chart comparing CO₂ emissions (bars, in million tonnes) and renewable energy percentage (line) for countries in 2025. Country data is sorted by emissions and color-coded by region. Built with D3 v7, it renders an SVG canvas and uses `d3.scaleBand`, `d3.scaleLinear`, and axes with gridlines. Data is loaded from a CSV via `d3.csv` with `d3.autoType`, and an interactive tooltip responds to hover. The chart animates on load and displays a legend for regional categories.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1cd8d1d01fad494796c62d98b057eaa8?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}