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

每天我们都有机看到航迹云，有些慢慢散开形成高空卷云。

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

从社媒录像中飞行云可以看出，两枚爱国者导弹击落了战机。

But what if the contrails that contribute the most to warming could be eliminated?

但如果对升温效应贡献最大尾可以消除，那？

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

有些尾可以形成持续18小时不散云。

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

但尾也阻止地面热量逃逸到太空中。

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

如果飞机避免在形成尾潮湿薄层中飞行，这一改变就可以实现。

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

尾由冰晶组成，而冰晶则由飞机引擎排放废气遇冷空气而成。

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

将其想象成飞机云中银线吧。

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

这一过程使尾对地球加温程度与飞机排放二氧化碳相等。

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

有时，在水肺潜水时，我从写字板上抬起头， 只看到鹦嘴鱼粪便尾迹如雨点般落下。

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

自 1969 年推出以来，747 独特外形和四条尾迹已成为天空中常见景象。

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

更好地理解尾管理，为航空业提供了减少全球环境影响机。