Abstract: The latest data of greenhouse gas emissions published by UNFCCC Secretariat were analyzed using statistical methods. Results show that the total greenhouse gas emission of Annex I countries exhibited an overall decrease trend compared with 1990. The total emission of greenhouse gases from economies in transition (EIT) showed an obvious decease trend, but the total emission from non-EIT countries displayed a gradually increase trend. Especially, the greenhouse gas emissions of energy sector in the United States and Canada in 2005 increased by 19.2% and 28.6%, respectively, relative to 1990. However, the greenhouse gas emissions in Britain and Germany distinctively reduced by 7.8% and 17.4%, respectively. The actual greenhouse gas emissions in 2005 are lower than the target emissions in more than half of the Annex I countries, which is in good performance condition.

Key words: greenhouse gases, reduction of emissions, Annex I Parties, climate change, performance negotiations