The ozone hole had been growing for decades over Antarctica.

几十年来，南极洲上空层空洞在不断扩大。

Next, a dryer-like tumbler uses ozone to fade jeans.

接下来，一个干式滚筒利用使牛仔裤褪色。

Around the earth, there's a special kind of oxygen call " ozone" (O3).

地球周围有一种很特别，为“”（O3）。

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

其他气溶胶可以主导伤害层化学反应。

However, the study said the ozone layer is improving.

然而，该研究称，层正在改善。

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

这意味着层空洞大小每年都在改变。”

" The protective ozone layer is being threatened as never before."

“具有保护作用层正受到前所未有威胁。”

If ozone depletion continued, rates of skin cancer would skyrocket.

如果耗继续下去，皮肤癌发病率将会飙升。

Near Earth, ozone in the air is a danger to life.

地球周边空气所含对人类有害。

But closer to Earth's surface, ozone is a common pollutant.

但更靠近地球表面话，就会是一种常见污染物。

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

它们不会损害层，而且更节能。

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

这足以彻底摧毁地球层。

Ground level ozone and particle pollution are the greatest threat to human health.

地表和颗粒污染物是人类健康最大威胁。

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

一种导致层空洞化学物质重新出现。

Scientists warned that humanity was on track to completely destroy the ozone layer by 2050.

科学家警告说，到2050年，人类将完全破坏层。

The disappearing ozone layer causes increased temperatures around the world, triggering cyclones, tsunamis and hurricanes.

层失导致全球气温升高，引发龙卷风，海啸和飓风。

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

气组成层使人免受紫外线伤害。

An international report says human action to save the ozone layer appears to have worked.

一份国际报告称，人类拯救层行动似乎奏效了。

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

联国一份新报告显示，地球层似乎正在愈。

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

这对每个人都有好处，因为它还可以保护层。