CO² Emissions Worldwide - Visualized

The Guardian has a set of comprehensive and interactive visualizations of CO² emissions by country.  As they put it

Interactive map of carbon dioxide emissions over time, including emissions per capita, per GDP, and percentage change year on year. Data courtesy of WRI. Asterisks indicate no data for that time point, minus symbols inside circles indicate a negative number. To change from total emissions to other measures, select a measurement and set it to size or colour. All measurements are excluding land use, land-use change and forestry (LULUCF).

Take a gander at these, or go see the original...