This area chart visualizes global population growth over time, with a filled maroon curve plotted against axes for year and population. The data is loaded from a CSV file and rendered as an SVG using D3 v6. The visualization employs `d3.area` with `curveBasis` for smoothing, `d3.scaleTime` and `d3.scaleLinear` for scales, and `d3.axisBottom` and `d3.axisLeft` to generate gridlines and tick labels. Population values are formatted in billions, and the chart includes axis labels and a title.