- Oops!Something went wrong.Please try again later.
The largest source of CO2 emissions into the atmosphere is the burning of fossil fuels. China is the worst clulprit, taking over from the United States, burning 10 billion tonnes of CO2 and contributing to 28% of total global emissions. The nations that make up the G-20 list are responsible for 78% of all CO2 emissions. Find out more at Yahoo UK.