The Convention on Climate Change sets an overall framework for intergovernmental efforts to tackle the challenge posed by climate change. It recognizes that the climate system is a shared resource whose stability can be affected by industrial and other emissions of carbon dioxide and other greenhouse gases.
The Convention enjoys near universal membership. Latest information on ratifications of the Convention can be found at : http://unfccc.int/essential_background/convention/status_of_ratification/items/2631.php
Under the Convention, governments:
gather and share information on greenhouse gas emissions, national policies and best practices
launch national strategies for addressing greenhouse gas emissions and adapting to expected impacts, including the provision of financial and technological support to developing countries
cooperate in preparing for adaptation to the impacts of climate change
The Convention entered into force on 21 March 1994.