U Bushinwa nicyo gihugu cya mbere ku Isi mu kohereza mu kirere umwuka wa HFC, kuko bwonyine bwohereza mu kirere 70% by’uwo mwuka, mu gihe ibindi bihugu byo ku Isi byohereza 30%.
Amazerano ya Kigali yasinywe mu 2016, avugurura amazerano ya Montreal yari yasinywe mu 1987 muri Canada, agamije guteza imbere imibereho myiza ya muntu binyuze mu kugabanya iyangirika rya Ozone.
Leta Zunze Ubumwe za Amerika nazo zari zimaze iminsi zitangaje ko zizasinya ayo masezerano, agamije kugabanya umwuka wa HFC woherezwa mu kirere ku kigero cya 80% mu myaka 30 iri imbere, ibyazagira ingaruka nziza kuko byazagabanya dogere Celsius 0.5 z’ubushyuhe ku Isi kugera nibura mu mpera z’iki kinyejana.
Ubusanzwe, umwuka wa HFC ukoreshwa cyane mu bikoresho bikonjesha, ku buryo byitezwe ko kugira ngo ugabanywe, bizasaba ko ikoranabuhanga rikoreshwa mu byuma bikonjesha ritezwa imbere.
Ibi nabyo bizagira ingaruka nziza ku kirere kuko ibi byuma biri mu bikoresha umuriro w’amashanyarazi menshi, ku buryo rero nibihindurirwa ikoranabuhanga, bizatuma uwo muriro ugabanukaho 15% by’ukoreshwa wose ku Isi, bikagira ingaruka nziza ku Isi kuko bizatuma igiciro cyawo kigabanuka, ndetse n’umwuka wangiza ikirere uboneka mu ikorwa ry’amashanyarazi ukagabanuka cyane.
Amasezerano ya Kigali amaze kwemezwa n’ibihugu birenga 100 birimo n’u Rwanda rwayemeje rugikubita mu 2017. Ni amasezerano y’ingenzi cyane mu gukumira iyangirika ry’ikirere riterwa n’umwuka wa HFC, uza ku isonga mu kwangiza akayunguruzo ka Ozone.
