This scatter plot visualizes the relationship between AQI and forest area across geographic coordinates, using circle size to encode AQI values and color intensity to represent forest percentage. The visualization loads CSV data via d3.csv, maps longitude and latitude to linear scales for axes, and employs d3.scaleSqrt for radius encoding and d3.scaleLinear with a light-to-dark green color range. A tooltip displays country, AQI, and forest area details on mouseover, while SVG circles with opacity and white strokes render the data points.