World's top emitters, ranked according to 2006 emissions of greenhouse gases in billions of tonnes of carbon dioxide equivalent China 6.72 United States 5.90 EU-27 5.06 India 2.07 Russia 1.67 Japan 1.25 Germany 1.00 Brazil 0.85 Canada 0.68 United Kingdom 0.65 Italy 0.535 South Korea 0.52 France 0.51 Mexico 0.51 Indonesia 0.50 Australia 0.49 Ukraine 0.48 Iran 0.48 South Africa 0.41 Spain 0.38 Poland 0.38 Turkey 0.35 Saudi Arabia 0.34 Argentina 0.28 Pakistan 0.28 Sources: United Nations, Netherlands Assessment Agengy \ENDS