Wasu model ba su yi la'akari da PSCs ba kuma sun yi hasashen raguwar duniya a hankali, wanda shine dalilin da ya sa ba zato ba tsammani Antarctic ozone hole ya zama abin mamaki ga masana kimiyya da yawa. Yana da mafi daidaito a yi magana game da raguwar ozone a tsakiyar latitudes maimakon ramuka. Gabaɗaya layin ozone ya ragu ƙasa da ƙimar pre-1980 tsakanin 1980 da 1996 don tsakiyar latitudes. A cikin arewacin latitudes, to, ya karu daga mafi ƙarancin ƙimar ƙa'idodi da kusan kashi biyu daga shekara ta 2009 zuwa 2009 kuma adadin stratosphere ya ragu a cikin yanayin sanyi. Wannan shine dalilin da ya sa wasu samfuran farko suka kasa yin la'akari da PSCs kuma sun yi hasashen raguwar duniya a hankali, wanda ya haifar da raguwar ozone a cikin yanayi mai zafi. A cikin rahoton binciken binciken binciken na UNEP na shekara ta 1991 a cikin Hemisphere, ba a lura da raguwar ozone ba sosai ba saboda ƙarancin yanayi mai zafi, amma ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙaran
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