Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Maitiro anoitika pamakore epasi (PSCs) anoita basa rinokosha mukusimbisa kuparara kweozone. PSCs inoumbwa nyore nyore mukutonhora kwakanyanya kweArctic neAntarctic stratosphere. Ndicho chikonzero nei makomba eozone akatanga kuumbwa, uye akadzika zvikuru, pamusoro peAntarctica. Mienzaniso yapakuvamba yakakundikana kurangarira PSCs ndokufanotaura kupera kwepasi rose zvishoma nezvishoma, ndokusaka gomba reozone reAntarctic rakanga rakashamisa zvikuru masayendisiti mazhinji. Zvakarurama zvikuru kutaura nezvokupera kweozone munzvimbo dzepakati panzvimbo pemakomba. Ozone yose yakaderera pasi pemitengo yapamberi pa1980 pakati pa1980 na1996 nokuda kwepakati pematanho. Muzvikamu zviri pakati nepakati zvekuchamhembe, yakabva yawedzera kubva paukoshi hushoma neanenge maviri muzana kubva muna 1996 kusvika muna 2009 sezvo mitemo yakatanga kushanda uye uwandu hwechlorine mu stratosphere hwakaderera. Mumativi ari pakati nepakati okumaodzanyemba kwepasi, uwandu hweozone hwakaramba huripo munguva iyoyo. Hapana muitiro unokosha munzvimbo dzinopisa, zvikurukuru nemhaka yokuti makemikari ane halogen haana kuva nenguva yokuputsika nokusunungura maatomu eklorini nebromine munzvimbo dzinopisa. Kuputika kukuru kwemakomo anoputika kwakaratidzwa kuva nemigumisiro yakakomba kunyange zvazvo isina kuenzana inoparadza ozone, sezvakaonekwa nokuputika kwa1991 kweMt. Pinotubo muPhilippines. Kupera kweozone kunotsanangurawo kuderera kukuru kunoonekwa mumatembiricha e stratosphere uye epamusoro troposphere. Manyuko okudziya kwe stratosphere ndiko kupinza mwaranzi yeUV neozone, nokudaro ozone yakaderedzwa inotungamirira kukudzikisira. Kumwe kutonhora kwe stratospheric kunofungidzirwawo kubva mukuwedzera kwemagasi anopisa akadai seCO2 neCFC ivo pachavo; zvisinei, kutonhora kunokonzerwa neozone kunoratidzika kunge kwakanyanya. Kufanotaura kwematanho eozone kunoramba kwakaoma, asi kunyatsoita kwemienzaniso yekufanotaura kwezviyero zvakaonekwa uye kubvumirana pakati penzira dzakasiyana dzekugadzira modelling kwakawedzera zvishoma nezvishoma. Sangano reWorld Meteorological Organization Global Ozone Research and Monitoring Project<unk>Report No. 44 rinobuda richibvumirana zvikuru neMontreal Protocol, asi rinocherechedza kuti UNEP...  Mubvunzo: Ndeipi yakanga iri nzvimbo iyo mushumo waiva nayo pamusoro peMontreal Protocol?
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