This visualization loads temperature-in-San-Francisco CSV data and animates a streaming area chart. Using the d3.csv method, it parses timestamp and temperature values, then renders them with a time-scaled x-axis and linear y-axis. The area and line paths are generated with d3.area and d3.line using a curveBasis interpolation, filled with a linearGradient that fades from red to transparent. A transition loop with active selection and easeLinear repeatedly splices new data points into the displayed dataset, redrawing the SVG paths to create a dynamic, rolling view of temperature trends.