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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Nitrous oxide is also a potent greenhouse gas, which contributes to global warming, so efforts to restrict emissions could tackle climate change as well as ozone loss, the scientists say.

科学家们指出，一氧化二氮也是一种威力甚大的温室气体，而温室气体会导致全球变暖。

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It is therefore likely that the addition of sulphate to the stratosphere would result in a loss of ozone, and thus in more ultraviolet radiation getting through.

因此，向平流层添加硫酸雾很可能会导致臭氧的损耗，从而使更多的紫外线穿过大气层。

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"It contributes to smog,acid rain, loss of biodiversity, dead zones along the coast, global warming, stratospheric ozone depletion.

VOA: special.2011.04.05

This central budget pays for much of its work on climate change, ozone depletion, the loss of species and habitats like coral reefs, and much more.

BBC: UN environment champ in cash crisis

It is therefore likely that the addition of sulphate to the stratosphere would result in a loss of ozone, and thus in more ultraviolet radiation getting through.

ECONOMIST: Geoengineering

Pumping ozone gas into four of its storage rooms reduced the loss from decay to below 2% in 2007.

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