1·But in the stratosphere they can stay aloft for years, spread by fast winds known as jets, meaning the threat is global.
但在平流层，它们可以在高处停留数年，高速的风对其进行传播，这意味着全球都受到了威胁。
2·Sulphur in the stratosphere, a natural result of volcanic eruptions, provides a lot more cooling per tonne than the coal-emitted sort.
平流层的硫是火山喷发的自然结果，这种硫每吨比燃烧煤释放的硫能造成更强的冷却效应。
3·Human-caused increases in atmospheric methane, which oxidizes into carbon dioxide and water vapor, could be providing more water for ice in the stratosphere.
人为增加大气中的甲烷，其氧化为二氧化碳和水汽后，能为平流层的冰提供更多的水份。
4·The findings will trigger a radical rethink about the state of the stratosphere.
这些发现将引发对平流层状态大量的重新思考。
5·Injecting sulphate particles into the stratosphere, for instance, would cool the Earth by reflecting more sunlight into space.
向平流层喷洒硫酸盐颗粒，可以通过反射阳光达到降低地球温度的作用。
1·One towering cloud reached into the stratosphere between 10 and 15 kilometers in altitude.
一团堆起的云层达到了同温层海拔10到15千米处。
2·Researchers have long known that greenhouse gases might help the layer recover by cooling the stratosphere, which slows the rates of chemical reactions that destroy ozone.
长期以来，研究人员已经了解到：温室气体通过对同温层的冷却作用，可以放慢破坏臭氧层的化学反应速度，因此也许会有助于臭氧层的恢复。
3·The pyrocumulus cloud and the detection of smoke in the stratosphere are good indicators that the fires are large and extremely intense.
pyrocumulus云以及在同温层探测到的浓烟可以很好的说明火势的凶猛。
4·The mission was to attach a HD video camera to a weather balloon and send it up into the upper stratosphere to film the blackness beyond our earth.
这项任务是把一个HD高清摄像机系在一个太空探测气象气球上，放飞到同温层上面，拍摄地球外面的黑暗。
5·Deliberately polluting the stratosphere would make the sky less blue, although sunsets would probably be prettier.
处心积虑地污染大气同温层会对天空的蔚蓝度造成危害，尽管日落的景色可能会更美一些。