This interactive multi-line chart shows annual average temperatures across four continents (North America, Europe, Asia, Africa) from 2010 to 2019. Built with D3 v7, it uses `d3.scaleLinear` for axes, `d3.axisBottom` and `d3.axisLeft` for tick marks, and `d3.line` to generate the SVG paths. A `d3.schemeSet2` color palette distinguishes each series, with a legend rendered as colored circles and labels. Data comes from the local `global_temperature.csv` file.