This area chart traces world population over time, showing a smooth upward curve with a subtle leveling in recent years. The visualization pairs an orange filled area with a darker line, and includes circular markers on each data point. Built with D3.js, it uses `d3.area()` and `d3.line()` with `curveBasis` to generate the paths, along with `d3.scaleTime` and `d3.scaleLinear` for the axes. The chart reads population data from a CSV file and renders as SVG.