Some raise their eyes heavenwards, launching weekly balloons to probe the ozone layer, watching with wonder the northern lights higher still.

有些人将目光投向天空，每周放出气球探测臭氧层的变化，并观看那更高之处的极光。

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Ozone at ground level - not to be confused with the ozone layer in the upper atmosphere - is one of the major constituents of photochemical smog.

与高层大气臭氧层不同的是，地面的臭氧是光化学烟雾的一个主要组成部分。

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For instance, HFC-134a and a whole family of related chemicals could be dealt with by extending the Montreal protocol created to protect the ozone layer from similar industrial gases.

比如，HFC - 134a和全部与之相关的化学物都能够通过推动蒙特利尔协定书来处理掉，这个协定书用以保护臭氧层免受类似工业气体的污染。

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And you end up with the destruction of the ozone layer.

最终臭氧层被破坏。

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European customers want to replace tetrabrom with nonhalogenated, or more ozone-layer-friendly, flame retardants.

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During the dinosaurs' time on Earth, "the atmosphere became charged with methane, which finally damaged the ozone layer and brought about great changes in the vegetation, " it added.

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He supported research into saving the ozone layer and was interested in communication with other possible worlds.

ECONOMIST: Freddy Heineken