This line chart visualizes global average temperature trends over time, plotting temperature values against yearly dates. The visualization uses D3.js v7 with an SVG rendering approach, employing `d3.scaleTime` and `d3.scaleLinear` for axes and a `d3.line` generator to create the orange trend line. Data is loaded remotely from a GitHub-hosted CSV file containing cleaned temperature records, with the code handling missing or empty data through error messages. The chart includes labeled axes, a legend, and a clean white background with subtle shadow styling.