Scientists found that when released into the air, the chemicals damaged the ozone layer, creating the hole.

科学家发现，CFCs释放到空气里会破坏臭氧层造成臭氧空洞。

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

其他气溶胶可以主导伤害臭氧层的化学反应。

Because food can damage even those tough outer layers of your teeth. How?

因为食物甚至能够损坏那些坚硬的牙齿外层。怎么做到的呢？

In the past, aerosols used chemicals called CFCs which damaged the ozone layer, but fortunately that is no longer the case.

过去，气溶胶使用称为氟氯化碳的化学物质，会破坏臭氧层，但幸运的是，情况已不再如此。

Here's an example: burning gasoline creates harmful chemicals like nitrogen oxides, which can damage the ozone layer, contribute to acid rain, and warm up our planet.

举个例子：燃烧汽油会产生氮氧化物等有害化学物质，这会破坏臭氧层，导致酸雨并使我们的星球变暖。

There is a concern that certain chemicals that we use here on Earth might damage the ozone layer, and that might cause us further problems here on Earth.

人们担心我们在地球上使用的某些化学物质可能会破坏臭氧层，这可能会给我们在地球上带来更多问题。