This bar chart displays carbon emissions by car model year from 2013 to 2022, using data from a CSV file. It uses d3.scaleBand and d3.scaleLinear to map years and CO2 values, with SVG rectangles rendered from the sample array. Hovering a bar triggers a transition that highlights it, shows a dashed limit line, and displays divergence text indicating the difference from the hovered value, while d3.axisLeft and d3.axisBottom provide the axes and grid lines.