FACTBOX: The world's top 25 greenhouse gas emitters

(Reuters) - About 1,000 delegates will meet in Ghana from Thursday for a round of U.N. talks meant to end with agreement by the end of 2009 on a new U.N. treaty to combat climate change.

Following is a table showing the world's top 25 emitters, ranked according to 2000 emissions of greenhouse gases in millions of tonnes (mT) of carbon dioxide equivalent (CO2e).

Also listed below are the emissions in 1990 and 2006 of greenhouse gases by industrialized countries. The U.N.'s Kyoto Protocol requires rich nations to submit such data under obligations to cap greenhouse gases from 2008-12 compared to a 1990 baseline.

Analysts say China may have overtaken the United States in 2007 as the world's top carbon emitter. U.S. and European Union emissions of greenhouse gases fell in 2006.

2000 1990 2006 2006/05 2006/1990

mT CO2e mT CO2e mT CO2e PCT PCT 1. United States 6,928 6,135 7,017 -1.3 +14.4 2. EU-27 5,067 5,573 5,159 -0.3 -7.4 3. China 4,938 4. Russia 1,915 3,326 2,190 +3.1 -34.2 5. India 1,884 6. Japan 1,317 1,272 1,340 -1.3 +5.4 7. Germany 1,009 1,228 1,005 +0.0 -18.5 8. Brazil 851 9. Canada 680 592 721 -1.8 +21.7 10. United Kingdom 654 769 653 -0.5 -16.0 11. Italy 531 517 568 -1.7 +9.9 12. South Korea 521 13. France 513 564 541 -2.5 -4.0 14. Mexico 512 15. Indonesia 503 16. Australia 491 17. Ukraine 482 922 443 +4.1 -51.9 18. Iran 480 19. South Africa 417 20. Spain 381 288 433 -1.7 +49.5 21. Poland 381 455 417 +3.6 -26.0 22. Turkey 355 23. Saudi Arabia 341 24. Argentina 289 25. Pakistan 285

SOURCES * 2000 data are taken from the World Resources Institute

* All other data are taken from industrialized nation submissions to the United Nations.

(Compiled by Gerard Wynn and Alister Doyle; )