This visualization plots cumulative greenhouse gas emissions from 1990 to 2013 for a ranked subset of countries, using a slider to animate through the years. Annual emissions are shown as a stacked bar segment that grows over time for each country, with the current year highlighted and each country’s cumulative total represented by the bar’s height. The chart is built with D3 v4, using `d3.scaleBand` for the categorical country axis and a linear scale for the emission values, and updates the bar heights and positions via a custom `render` function that filters the CSV data by year and rank.