China still is
classified as a developing country and is thus exempt from any emissions limits, but it has a vastly larger economy than it had in 1992 and recently surpassed the United States
as the world's largest emitter of
greenhouse gases.
This categorization is problematic because this classification into these two categories arguably made some limited sense when the United Nations Framework Convention on Climate Change was opened for ratification in 1992, but it doesn't now given that some of the countries that were initially
classified as developing countries, including India and China, are quickly emerging
as the among the largest emitters of
greenhouse gases (ghg).