This scatterplot uses D3.js v7 to visualize the relationship between GDP per capita and CO2 emissions per capita, with each circle representing a country. The plot encodes quantitative data on both axes using linear scales, while a categorical region column will determine color and population determines circle size in subsequent versions. The code loads a CSV file, converts specified numeric columns, and renders the visualization using SVG elements. Axes are created with D3's axis functions, and a summary displays the data's row count and field names.