Correct option is C
The correct answer is (c) 1992
Explanation:
• The Earth Summit, formally known as the United Nations Conference on Environment and Development (UNCED), was held in Rio de Janeiro in June 1992.
• It was a major UN conference held to reconcile worldwide economic development with environmental protection.
• The summit resulted in the adoption of Agenda 21, a comprehensive plan of action for sustainable development.
• Two major legally binding agreements were opened for signature: the Convention on Biological Diversity (CBD) and the Framework Convention on Climate Change (UNFCCC).
• It also led to the creation of the Commission on Sustainable Development.
Information Booster:
• The Rio Declaration on Environment and Development was also produced, consisting of 27 principles intended to guide future sustainable development.
• It is considered a watershed moment in international environmental law.
Additional Knowledge:
(a) 1994 (Option a)
• This year saw the first Global Conference on the Sustainable Development of Small Island Developing States in Barbados.
(b) 1990 (Option b)
• This was the year the First Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) was released.
(d) 1998 (Option d)
• This year marked the signing of the Rotterdam Convention on hazardous chemicals and pesticides.