This histogram visualizes the distribution of carbon intensity from electricity generation, using data loaded from an external CSV file via `d3.csv()`. The chart consists of 20 bins, computed with `d3.histogram()`, displayed as steel-blue bars, and axes are created using `d3.axisBottom` and `d3.axisLeft` with tick marks extending across the plot. The SVG graphic is rendered responsively with D3 v7, including labeled axes and a title.