A select few countries have been responsible for the majority of the world's CO2 emissions since the '70s.
To know the biggest CO2 spewers in recent history, have a look at these animated maps from the Paris-based data designer "JeremY Boy." They show the countries responsible for the bulk of emissions since 1971, with pulsating, foul-looking clouds each representing 300 million tonnes of C02. Note that some countries are left blank due to missing or incomplete information (certain governments don't accurately track bunker fuels, for instance), and that the data refers only to emissions from burning fossil fuels, not smaller sources like incinerating waste materials.
Via Lauren Moss