This visualization shows the change in U.S. nuclear capacity in megawatts over time using an area chart. The data, sourced from a Walmart CSV file, is parsed and formatted with D3 v4’s `d3.csv` and `d3.timeParse`. The visualization uses `d3.scaleTime`, `d3.scaleLinear`, and `d3.area` to render a filled path with aquamarine fill and slateblue stroke, alongside labeled axes and axis generators.