This radial bar chart displays 2023 CO₂ emissions per capita for the top 12 countries by that metric, with an “Other” bar aggregating the remaining nations using a population-weighted average. Built with D3.js v7 and rendered as SVG, it uses `d3.scaleBand` for angular positioning, `d3.scaleRadial` for radius, and `d3.arc` to draw the wedges. Data loads from a CSV via `d3.csv`, with numeric columns parsed and values sorted before aggregation.