The United Nations Framework Convention on Climate Change (UNFCCC) was adopted in which year?

Correct answer: 1992. The UNFCCC was adopted in 1992.

Background: It was adopted at the Earth Summit (UN Conference on Environment and Development) in Rio de Janeiro, Brazil, and entered into force in 1994.

• 1987: 1987 is the year the Montreal Protocol on ozone-depleting substances was adopted.
• 1990: 1990 saw the first IPCC assessment report, which prompted the negotiations, but the convention came later.
• 1997: 1997 is the year the Kyoto Protocol was adopted.

Did you know? The UNFCCC is the foundation for all the annual COP climate negotiations.

Memory trick: Rio 1992 = UNFCCC.