This line chart visualizes temperature over time, using a smooth natural curve to connect data points from a CSV of weekly San Francisco temperatures. Built with React and D3 v5, the SVG rendering displays a time-scaled x-axis with day abbreviations and a linear y-axis for temperature, with data points as circles. The chart uses `d3.scaleTime`, `d3.scaleLinear`, `d3.line`, and `d3.curveNatural` to create the visualization.