Pedzisa mutsara unotevera: Sangano rehurumende rinodzidza nezvekushanduka kwemamiriro okunze rakaumbwa muna 1988 neWorld Meteorological Organization neUnited Nations Environment Programme. Muna 1992, hurumende dzenyika dzakabvumirana paUnited Nations Framework Convention on Climate Change paEarth Summit muRio de Janeiro. Zviitiko zvinotevera zvave zviri Kyoto Protocol ya1997, Musangano weCopenhagen wa2009 uye 2015
Musangano weParis.