These ozone-destroying chemicals are used in aerosol sprays on Earth.

这种能够破坏层的化学物质在地球上用于气器。

The 1987 Montreal Protocol phased out the use of chlorofluorocarbons, or CFCs, responsible.

分阶段撤销氯碳化物、氟氯碳化物、以及其他一些会对层造成破坏的物质的使用。

Other aerosols can host chemical reactions that damage the ozone layer.

其他气溶胶可以主导伤害层的化学反应。

A second important area is monitoring the size of the hole in the ozone layer above Antarctica, since this is an indicator of global ultra-violet radiation levels.

第二个重要的地方是检查南极洲上空层空洞的大小，因为标志着全球紫外线的辐射水平。

This means the size of the ozone hole changes year on year.

这意味着层空洞的大小每年都在改变。”

The ozone hole had been growing for decades over Antarctica.

几十年来，南极洲上空的层空洞在不断扩大。

High up in the atmosphere, ultraviolet radiation transformed oxygen into ozone and gave Earth a vital shield — the ozone layer.

在大气层的高处，紫外线辐射将气转化为，为地球提供了一个至关重要的屏——层。

It's linked to global warming, acid rain, effects on wildlife, depletion of the ozone layer.

空气污染和全球变暖、酸雨、野生动物保护、层耗竭这些问题息息相关。

Right. So in this headline, it's saying that if nothing changes, if everything carries on the way that it is now, then the Earth's ozone layer — this protective shield — will have recovered by 2066.

没错。因此，在这个标题中，说的是，如果什么都不改变，如果一切都照现在这样进行下去，那么地球的层——这个保护层——将在 2066 年恢复。

A chemical that helped to create a hole in the ozone layer is reappearing.

一种导致层空洞的化学物质重新出现。

The ozone layer, our protection against the sun's UV rays, is made of oxygen.

气组成的层使人免受紫外线伤害。

These do not harm the ozone layer and are more energy efficient.

们不会损害层，而且更节能。

The study says it should fully recover within decades.

该研究称，层将在几十年内完全恢复。

It would be enough to totally destroy the Earth's ozone layer.

这足以彻底摧毁地球的层。

The layer sits between 15 to 30 kilometers above Earth's surface.

层位于地球表面上方15至30公里处。

A new United Nations report says the Earth's ozone layer appears to be healing.

联合国的一份新报告显示，地球的层似乎正在愈合。

This pays great dividends for everyone as it also serves to protect the ozone layer.

这对每个人都有好处，因为还可以保护层。

Another way we are using float data is to help us to understand the mechanics of climate change, like global warming and ozone depletion.

另外，我们利用漂浮体数据帮助我们了解气候变化的运行方式，比如全球变暖和层空洞。

It goes up every morning at 11 o'clock and measures air temperature and the density of the ozone layer to an altitude of up to 30 kilometers.

每天早晨11点上升，并测量高达30公里的气温和层的密度。

After all, nothing can fry us more and better than cosmic radiation and this will happen because the ozone layer will also disappear.

毕竟，没有什么比宇宙辐射更能把我们烤焦了，这将会发生，因为层也会消失。