A large hole in the ozone layer was reported to have opened over the Arctic this spring, the first time ozone loss in the northern hemisphere has matched that in the southern.

据报道，今年春天北极上空的臭氧层出现一个大洞，这是首次在北半球出现的臭氧损耗和南半球不相上下。

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Altering the atmosphere could also weaken solar power and reverse years of work to close the hole in the ozone layer.

改变大气也会削弱太阳能，并让为关闭臭氧层空洞所做的多年努力付诸东流。

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Apart from global warming, Mr Ban will meet people affected by another environmental problem-the emergence of a hole in the ozone layer.

除了了解全球变暖问题，潘基文还将会见受到臭氧层空洞影响的人们。

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The hole is a thinning area in the ozone layer over Antarctica and the size of the hole varies every year depending on weather conditions.

CNN: Ozone hole grows in 2008

He experienced firsthand the impact of humanity on the environment when under the hole in the ozone layer at the South Pole, the harsh ultraviolet rays from the sun burned his skin and permanently changed the color of his eyes.

CNN: The polar explorer searching for green warriors