This area chart shows global population growth over time, with the x-axis representing years and the y-axis showing population counts in billions. A maroon filled path, generated with d3.area() and curveBasis, spans the chart beneath a labeled time axis. The visualization uses d3.scaleTime and d3.scaleLinear to map data from a CSV file containing yearly global population estimates. Axes are rendered with axisBottom and axisLeft, including formatted tick labels that convert large numbers to abbreviated units.