This line chart displays one week of temperature data in degrees Celsius for San Francisco, sourced from Data Canvas - Sense Your City. The visualization plots temperature over time using a smooth curved line, with labeled axes for time and temperature. The code uses d3.scaleTime, d3.scaleLinear, d3.line with curveBasis, and d3.axisLeft/axisBottom to render the SVG chart. Data is loaded via d3.csv, with timestamps parsed as Date objects and temperatures converted to numbers before rendering.