But the contrails also stop heat coming up from the ground from escaping into space.

但凝结尾也阻止地面热量逃逸到太空中。

Social media video showed contrails from two Patriot missiles fired at the jet.

从社媒录像中的飞行云看出，两枚爱者导弹击落了战机。

Some contrails can form clouds that last for up to 18 hours.

有些凝结尾持续18小时不散的云。

Contrails are made up of ice crystals that form when aircraft engines emit exhaust that hits the cold air.

凝结尾由冰晶组，而冰晶则由飞机引擎排放的废气遇冷空气凝结而。

On any given day odds are you'll see several contrails, some slowly spreading out to form high, cirrus clouds.

每天我们都有机会看到航迹云，有些会慢慢散开高空卷云。

This process allows contrails to warm the planet about as much as the carbon dioxide emissions from aircraft.

这一过程使凝结尾对地球的加温程度与飞机排放的二氧化碳相等。

Such a change could be achieved if aircraft avoided flying in the thin layers of humidity where contrails form.

如果飞机避免在凝结尾的潮湿薄层中飞行，这一改变就实现。

Think of it as a silver lining in those contrail clouds.

将其想象飞机云中的银线吧。

There were no jet contrails in the sky.

天空中没有喷气式飞机的尾迹。

This improved understanding of how to manage contrails presents an opportunity for the aviation industry to reduce its global environmental impact.

更好地理解凝结尾管理，为航空业提供了减少全球环境影响的机会。

Since its introduction in 1969, the 747's  unique shape and quadruple contrails have become a familiar sight in the  skies.

自 1969 推出来，747 独特的外和四条尾迹已为天空中常见的景象。

Sometimes, when scuba diving, I would look up from my clipboard and just see contrails of parrotfish poop raining down.

有时， 当我潜⽔时，会从记事板上抬头看到鹦鹉鱼的大便像雨一样落下。

" So if you look up in the sky, you probably see at some point an aircraft, and behind that aircraft are white fluffy streaks. And that's what we call a contrail."

“所，当你抬头望天，或许会在某一刻瞥见一架飞机，而在那飞机身后，拖曳着白色的蓬松痕迹。那就是我们所说的尾迹云。”

But what if the contrails that contribute the most to warming could be eliminated? Such a change could be achieved if aircraft avoided flying in the thin layers of humidity where contrails form.

但如果能消除那些对升温贡献最大的尾迹云呢？这一改变通过飞机避开在尾迹云的高湿度薄层中飞行来实现。