Correlation Explorer
Pick two indicators to see how countries and regions compare — bubble size = population · click any dot for details
2023
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Source: World Bank Open Data
Trade vs Air Pollution · 2023
In 2023, Trade Openness and Air Pollution (PM2.5) show a weak negative correlation (r = -0.23) across 170 countries.
A slight tendency links higher trade to lower air pollution, but the relationship is inconsistent and varies widely by region.
Use the interactive bubble chart to explore individual countries and regions, or adjust the year slider to see how this relationship has evolved over time. Bubble size represents population.