Between 2001 and 2008, worldwide emissions of CO2 has increased by 4.2 billion tonnes - an increase of about 18 percent.
Two thirds of that increase was due to emissions from China. Around 10 percent of the increase came from India. Emissions from OECD countries fell by 100 million tonnes.
In the case of the US, emissions have fallen fractionally. In 2006, it was overtaken by China, which is now the greatest provider of CO2 emissions in the World.