OK, now for number three you need rock salt or copper sulphate.

好，第三个实验需要你准备石盐或铜。

The earliest Earth was full of hydrogen, of hydrogen sulphate, had a lot of methane, some carbon dioxide.

最初地球上充满了氢、化氢甲烷以及一些二氧化碳。

OK, now for number three you need rock salt or copper sulphate.

好，现在第三个你需要岩盐或铜。

Underneath its wheels was jarosite, which is a mineral of iron(iii) sulphate.

它轮子下面是黄钾铁矾，一种亚铁矿物。

Once in the atmosphere, that gas forms sulphate particles.

一旦入大气中，那种气体就会形成盐颗粒。

But sulphate particles in the lower atmosphere reflect sunlight, just like those created in the stratosphere after volcanic eruptions.

但低大气层中盐颗粒会反射阳光，就像火山爆发后在平流层中形成那些颗粒一样。

A second type eats these electrons and converts sulphate  into sulfite that is then eaten by a third microbe and so on.

第二种类型消耗这些电子，并将盐转化为亚盐，然后被第三种微生物食用，以此类推。

A sweltering world might try to find a way to keep the cooling properties of sulphates without the drawbacks for air quality and health.

一个酷热世界可能会试图找到一种方法，在不损害空气质量与健康情况下，保留盐冷却效果。

The Japanese brand Uniqlo, likewise implicated, responds: The analyses we had access to did not take into account the presence of lead and sulphate in the industrial wastewater.

我们得到分析没有考虑到工业废水中铅和盐存在。

Some talk of geoengineering—for example, spraying sulphates into the polar air to reflect sunlight back into space, or using salt to seed the creation of sunlight-blocking clouds.

有些人谈到地球工程，比方说向极地大气中喷洒盐，从而将阳光反射回太空，或是撒盐来促使水汽凝结成云，阻挡日光。

The evidence is visible as a worldwide decline in ship tracks, long, thin clouds created when sulphate particles in a ship's exhaust provide nuclei around which water droplets can form.

证据表现为全球范围内船舶轨迹减少，这些长而细云是由船舶尾气中盐颗粒作为核心形成水滴聚集而成。