It is a UNFCCC protocol that was adopted in 1997 and entered into force in 2005. The Kyoto protocol is an international agreement, which aims to reduce the emissions of six greenhouse gases that cause global warming.
It implies that all the countries that signed it, undertake to reduce the emission of these gases by about 5% in a period from 2008 to 2012.
Chile ratified the protocol in 2002.