What is the full form of UNFCCC.
United Nations Framework Convention on Climate Control
Universal Nations Framework Convention on Climate Change
United National Framework Convention on Climate Club
United Nations Framework Convention on Climate Change
The 1992 Summit launched the United Nations Framework Convention on Climate Change (UNFCCC), whose signatory countries have met annually since 1995. 2012 - The United Nations Conference on Sustainable Development (UNCSD) or Rio+20, also took place in Rio de Janeiro (Brazil). Considered as the last Earth summit. Hence, the correct answer is option 4.