The World’s Largest Polluters / / No Comments The footprintMap is an interactive mapped visualization of the CO2 footprint of 118 countries around the world. Using the map you can discover the per capita CO2 output of each country and see which countries contribute the most and least to global heating. According to this map Singapore has the highest per capita CO2 footprint of any country. The United States has the 9th highest per capita Maps Mania… more → Posted in: Interactive Maps Tagged with: Largest, Polluters, world's