This choropleth map visualizes CO2 emissions by country for the year 2023. Countries are colored on a red intensity scale, with darker shades indicating higher emissions, while countries lacking data appear with a gray diagonal pattern. The visualization loads geographic path data from a static SVG file and emission data from a CSV, matching country names to their corresponding SVG paths. The map updates after both datasets load, applying fill colors based on emission values relative to a fixed maximum. The implementation uses React with d3-select for DOM manipulation and d3.csv for data parsing.