This diverging bar chart compares average temperatures across cities, using a diverging color scale (blue to red) to show deviations from the mean baseline. The visualization renders as SVG via D3 v7, with bars extending left or right from the baseline depending on whether temperatures fall above or below average. It uses `d3.scaleDiverging` with `d3.interpolateRdBu` for coloring, `d3.scaleBand` for city categories, and a `d3.legendColor` legend. Data comes from a CSV file containing weather records, loaded with `d3.csv`, and the chart includes labeled axes and a title.