This visualization shows GDP per capita against CO₂ per capita for each year in a small-multiple grid of scatterplots. Each frame represents one year, with points colored by region and tooltips revealing country names. The code uses d3.csv to load data, d3.scaleLinear for shared x and y scales across all frames, and d3.axisBottom and d3.axisLeft to render axes. The d3.schemeTableau10 color scale assigns region colors, while SVG circles are appended with d3.selectAll and .join, incorporating a d3.append title element for hover details.