This D3.js visualization displays New York City water consumption and population data from 1979 to 2022. It plots two lines over time: one black line for water consumption (in millions) and one red line for population, each scaled to its own y-axis using `d3.scaleLinear`. The SVG chart is rendered with `d3.line` for the paths, `d3.axisLeft` and axis label helpers from `@curran/axis-labels`, and a light gray inner rectangle background. Data originates from the NYC Open Data water consumption dataset.