This pie chart visualizes the top 10 countries by deaths attributed to air pollution in 2020, using d3.pie and d3.arc to generate SVG path segments and labels. Each slice displays its death count in thousands, while a legend uses d3.scaleOrdinal with a hardcoded color array to map countries to colors. The data is fetched asynchronously from a CSV URL using d3.csv, and the chart is rendered on a 960×500 SVG canvas.