A line chart plots temperature over timestamp from a subset of the Missing Migrants Global dataset, with each point rendered as a circle and connected by a natural curve. The example demonstrates a React-based D3 workflow, using `d3.csv` for loading data, `scaleTime` and `scaleLinear` for axes, `extent` for domains, and `line().curve(curveNatural)` for the path geometry. SVG output is generated through React components for axes and marks, styled with a serif font and purple accents.