This bar chart shows the sum of crop residue generated per zone across Mexico, with each bar colored by state. The visualization aggregates population data by zone and sorts bars in descending order, with tooltips revealing the state name for each segment. Built with the vega-lite-api, it uses `markBar`, `fieldQ` for quantitative population values, and a category20b color scheme. Data is loaded asynchronously via d3.csv from a GitHub-hosted CSV file, and the chart renders with vega-tooltip handler and custom config for improved readability.