This scatter plot visualizes the relationship between GDP per capita and CO₂ emissions for countries in 2025, with each point’s color indicating the region (Asia, Europe, Americas, Africa, Oceania) and its size encoding population. Built with D3 v7, the chart maps GDP to the x-axis, CO₂ emissions to the y-axis, and uses a square-root scale for point radii. The data is loaded via `d3.csv` from a GitHub gist, and the visualization features a grid, axis labels, and region color coding, all rendered in SVG with hover tooltips.