This pie chart visualizes the top 10 countries by deaths from air pollution in 2020. Data is fetched from a CSV file containing country death counts. The chart uses d3.pie and d3.arc to generate the segments, with colors assigned via d3.scaleOrdinal. Each slice displays its value in thousands, and a legend lists countries with corresponding colors and numbers. The visualization is rendered using SVG within a 960x500 pixel canvas.