Among the dramatic plans featured is the us Army's Project Cirrus, an experiment in 1947 to weaken a Caribbean hurricane by "seeding" its clouds.

其中最引人注目的特色设计是美军人工影响飓风计划(Project Cirrus)。这是美军于1947年进行的一项实验，通过“种云”削弱加勒比飓风。

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Apparently the effects of jet planes punching through clouds are similar to "cloud seeding" operations, where ice crystals are created in the atmosphere to make it rain.

显然，飞机穿过云层与“云种散播效应”类似，在空中形成的冰晶会导致降雨。

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Storm clouds drop as little as 10 percent of their water as rain or snow, but "cloud seeding" has been used since the 1950s to coax more from them.

暴风云只降下10%水分成为雨或雪，而自1950年代起采用的“云种散播”，可催化降下更多水分。

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It attempted to calm hurricanes down by seeding clouds around them in a similar fashion.

ECONOMIST: Saturday-night showers

Whether by seeding clouds, spreading giant mirrors in the desert, or injecting sulfates into the stratosphere, most such plans seek to replicate the effects of eruptions like Mt.

NEWYORKER: The Climate Fixers

Now, a UK team is proposing "seeding" clouds out at sea to control hurricane strength, and perhaps stop them forming at all.

BBC: Geoengineering: Risks and benefits