What is the name of the international climate treaty adopted in 1997?

The international climate treaty adopted in 1997 was the Kyoto Protocol. It was adopted on December 11, 1997, at the third Conference of the Parties to the United Nations Framework Convention on Climate Change in Kyoto, Japan.

The protocol was designed to give industrialized countries legally binding greenhouse-gas reduction targets, reflecting the principle that nations with greater historical emissions should take the lead. Its first commitment period covered 2008–2012, and the agreement included mechanisms such as emissions trading, joint implementation, and the Clean Development Mechanism.

Kyoto is often confused with the Paris Agreement, but they are different agreements. The Paris Agreement was adopted in 2015 and established a broader framework in which nearly all countries submit national climate plans. The Montreal Protocol, adopted in 1987, primarily addressed ozone-depleting substances, while the Copenhagen Accord emerged from climate negotiations in 2009. The Kyoto Protocol entered into force on February 16, 2005, after the required ratifications were secured.