{"version":"1.0","type":"rich","title":"line graph","description":"This visualization combines multiple line series and bar charts to show CO₂, methane, and nitrous oxide emissions alongside GDP trends from 1960–2022. The data is loaded from a TSV file using `d3.tsv` with `d3.autoType`. Lines are rendered using `d3.line()` with an ordinal color scale, while semi-transparent bars represent GDP on a right-aligned axis. The SVG chart includes axes, labels, and a tooltip, built entirely with D3 v7.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/aef324229faa421db36eda50c5c22dfb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}