This area chart displays the growth of world population over time, with years on the x-axis and population on the y-axis, using a smooth curved line filled in maroon. The visualization loads data from a CSV file and renders it as an SVG using D3 v6, employing `d3.area` with `curveBasis` to generate the smoothed path. Axes are created with `d3.axisBottom` and `d3.axisLeft`, with population formatted in billions and a labeled title. The chart uses a linear scale for population and a time scale for years, including grid lines and axis labels.