This area chart visualizes world population growth from 1950 to 2020, with a smooth, filled curve showing the increase over time. The chart uses D3 v5 with SVG rendering, employing `d3.scaleTime`, `d3.scaleLinear`, `d3.area`, and `d3.curveBasis` to generate the path. Data is loaded from a CSV file via `d3.csv`, with axes formatted using `d3.axisLeft` and `d3.axisBottom`, including tick labels that abbreviate population values in billions.