Because CFCs are also powerful greenhouse gases.

因为氯碳化物是强大的温室气体。

Because CFCs are also greenhouse gases.

因为氯烃也是温室气体。

On the ground, CFCs aren't harmful.

在地面上，CFC 是无害的。

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

分阶段撤销氯碳化物、氯碳化物、以及其他一些会对臭氧层造成破坏的物质的使用。

And back then we used a lot of CFCs.

那时我们用了很多 CFC。

The biggest problem was chlorine from a man-made compound called Chlorofluorocarbons, or CFCs.

最大的问题是来自人造化物含氯烃中的氯（CFC）。

CFCs could hang around in a planet's atmosphere for a long time.

氯烃会在一颗行星的大气层停留很长一段时间。

The US had already moved away from CFCs in aerosol cans.

美国已经不再使用 CFC 的气溶胶罐了。

The cost of helping developing countries phase out CFCs under the Montreal protocol was just 2.4 billion all-told from 1990-2010.

1990-2010年间，德国根据蒙特利尔议定书，帮助发展中国家逐步氯碳化物的总成本仅24亿美元。

They have switched to other less harmful chemicals, and labelled their cans 'ozone-friendly' or 'no CFCs'.

他们改用其他毒性较小的化学品，并在罐子上贴上了这样的标签：“不破坏臭氧层”或“不含氯烃”。

To help save the ozone layer, many manufacturers have stopped producing aerosol cans that use CFCs.

为了挽救臭氧层，很多制造商已停止生产使用氯烃的喷雾罐。

NASA's James Webb Space Telescope, due to launch in 2018, should be powerful enough to detect chlorofluorocarbons, CFCs.

将于2018年发射的美国宇航局的詹姆斯韦伯太空望远镜应该强大到足以检测氯化碳, 氯烃。

However, more and more manufacturers are now producing refrigerators and air conditioners that do not use CFCs.

然而，越来越多的制造商现在在生产不使用氯烃的电冰箱和空调。

The US and UK, along with Canada, Norway, Sweden, and Finland, led calls for an international ban on CFCs.

美国和英国以及加拿大，挪威，瑞典和芬兰，带头呼吁国际上禁用 CFC。

This refrigerant is said to be less harmful to the environment than older cooling chemicals known as chlorofluorocarbons (CFCs).

据说，这种制冷剂对环境的危害小于被称为氯烃(CFCs)的较老的冷却化学品。

As the use of CFCs declined, the ozone hole began shrinking, and is predicted to disappear entirely by 2070.

随着 CFC 的使用逐渐减少，臭氧空洞开始缩小了，预计到 2070 年将完全消失。

The fight to ban CFCs found two unlikely allies in US President Ronald Reagan and UK Prime Minister Margaret Thatcher.

禁止 CFC 的斗争中形成了一对不寻常的盟友，美国总统罗纳德·里根和英国首相玛格丽特·撒切尔。

CFCs were developed in the 1920s by three US-based corporations as coolants for refrigerators.

CFC 是在 1920 年代由三个美国公司开发的用于冰箱的冷却剂。

CFCs were added to insulation foam and fire suppression products.

氯化碳被添加到绝缘泡沫和灭火产品中。

When this became known, many manufacturers stopped using CFCs in their aerosol cans.

当这件事为人所知时，许多制造商停止在他们的气雾罐中使用 CFC。