Aerial seeding is not a new idea.

空中播种并不是一个新想法。

In 2017 the National Science Foundation funded a study to determine cloud seeding's effectiveness.

2017年，国家科学基金会资助了一项研究，确定云催化的有效性。

This would not be seeding them with Earth life.

并不是播种来自地球生命。

So is this a problem that cloud seeding could solve?

那么，人工降解决这个问题吗？

The first cloud seeding experiments took place in the 1940s.

第一次人工降水实是20世纪40年代进行的。

This could be solved by seeding the clouds above the Arctic with droplets of saltwater.

这个问题北极上空撒盐水，帮助成云的方法来解决。

The method to artificially produce rain is called cloud seeding.

这种人工增的方法被称为人工降。

Work with the soil before seeding or transplanting.

播种或移栽前要先整理土壤。

Nobody would have noticed until the farmers went out to do their seeding.

直到农民们出去播种，才会有人发现它。

But today tests using clouds in snowy mountains are providing further evidence that cloud seeding works.

但是今天，雪山中使用云层的测试进一步证明了人工降的有效性。

Gene's farm is right outside the cloud seeding program's target area but he wants in.

吉恩的农场就人工降程序的目标区域之外，但他想加入其中。

She called the results a " revelation" to helping understand the effectiveness of cloud seeding technology.

她称结果是“启示”，有助于理解播云技术的效果。

Cloud seeding has been tested in parts of the United States since the 1940s.

自上世纪40年代来，美国部分地区一直进行播云试。

The group starts by collecting restaurants discarded oyster shells, drying them and then seeding them with oyster larvae.

这个小组首先收集餐馆丢弃的牡蛎壳，晾干，然后用牡蛎幼虫播种。

Still, the experiment of Idaho has added to a growing body of evidence that cloud seeding works.

然而，爱达荷州的实增加了越来越多的证据，证明人工降是有效的。

And soon after seeding, these flowers will die, not to be seen again for the next 12 years.

授粉后不久，这些花将会死去，下次看到它绽放，还要再等 12 年。

Cloud seeding is a process that involves shooting salt into clouds in an attempt to create artificial rain.

播云就是向云层喷射盐制造人工降。

For now, national weather bodies have yet to endorse the practice of cloud seeding.

目前，国家气象机构尚未批准云催化的实践。

To make more rain, you know, cloud seeding is really the only thing out there.

为了制造更多的降，便只有人工降这个法子了。

In some areas, the cloud seeding created new snowfall where no natural snow existed.

部分地区，播云带来了新的降雪，那里并没有自然降雪。