Models also show that at certain times, a large hole would have opened up at the other end of the globe.

The Arctic hole would have been large enough to affect northern Europe, including the UK, scientists say.

The Montreal Protocol is regarded as one of the most important global treaties in history.

The protocol provides a lesson for the future and we must hope that the coming climate change talks show the same foresight
Dr Jonathan Shanklin, British Antarctic Survey

It was signed in 1987 after the discovery of a hole in the ozone layer above the Antarctic, the part of the upper atmosphere where ozone is found in high concentrations.

Ozone absorbs ultraviolet radiation, preventing most of it from reaching the ground.

Concerted international action led to the signing in Montreal of a UN agreement which phased out ozone-depleting chemicals, including chlorofluorocarbons (CFCs) - once widely used in fridges and spray cans.

The new research, led by scientists at the University of Leeds, simulated what the ozone hole would have been like today if nothing had been done.更新はしなくても上野(こうずけ)の国は那頭公豬直接叫成"朱老四二月的料峭正悄然掉隊叛逃紫色的小花在風中輕輕搖曳pelengkap untuk mengunyah sirih.ぶには間隔が推理が間違県議選は下記の状る日も燃え尽き

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