The objective of the treaty is to "stabilize greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system".
As of 2013, the UNFCC has 195 parties including all United Nations member states (except South Sudan), as well as Niue, Cook Islands and the European Union.In addition, the Holy See, Palestine and South Sudan are observer states
Parties to the UNFCCC are divided into several groups according to differente commitments.
Annex I，Annex II，Non-Annex I, LDCs,
There are 41 Parties listed in Annex I. They are the industrialized countries that were members of the OECD in 1992, plus countries with economies in transition (the EIT Parties), including the Russian Federation, the Baltic States, and several Central and Eastern European States.
There are 24 Parties to the UNFCCC listed in Annex II of the Convention.These Parties consist of the OECD members of Annex I, but not the EIT Parties. They are required to provide financial resources to enable developing countries to undertake emissions reduction activities under the Convention and to help them adapt to adverse effects of climate change. In addition, they have to "take all practicable steps" to promote the development and transfer of environmentally friendly technologies to EIT Parties and developing countries. Funding provided by Annex II Parties is channelled mostly through the Convention’s financial mechanism.
Non-Annex I Parties are mostly developing countries.
Certain groups of developing countries are recognized by the Convention as being especially vulnerable to the adverse impacts of climate change, including countries with low-lying coastal areas and those prone to