Recently, cloud seeding has been proposed as a climate change mitigation strategy to brighten cloud backgrounds and increase the proportion of solar radiation that is reflected back into space. Caution must be exercised in undertaking this kind of effort on a global scale, pointing out the historical difficulty in proving causality in local cloud seeding.
Cloud seeding on a global scale does have historical precedents, which manifested themselves, however, in a very unexpected way: through the unintentional active influence on the weather. For example, as a result of volcanic eruptions, particles entered the stratosphere that contributed to a decrease in air temperature at the global level within 2 to 3 years after the eruption (in particular, such eruptions are believed to have contributed to the preservation of the Little Ice Age in the 19th century). Another example of an unintentional active influence on the weather is related to the fact that, as a result of satellite observations, it was found that particles that got into the air with the smoke of steamship pipes change the properties of the upper layer of stratocumulus clouds, increasing the brightness of the cloud background.
When actively influencing the weather, intentionally or unintentionally, "it is important to remember that the atmosphere has no walls." What you add may have a desirable effect near you, but when transferred, it may have an undesirable effect elsewhere.
The goal of cloud seeding is to prevent hail and other forms of damaging precipitation in some regions. When we transform ice into water to create more rain or snow, then we are increasing the risk of other adverse events. Flooding is a significant issue that can happen from this work.
And when there are storms, even the estimates from cloud seeding companies themselves show the practice increases precipitation by only around 10 percent in a given area. That might be worth the effort when every acre-foot counts, but it's not going to end a drought across an entire region.Mar 3, 2022
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Can Cloud Seeding Help Quench the Thirst of the U.S. West? - Yale ...
The intent or goal of cloud seeding is to increase the rain or snow precipitation, suppress hail, reduce lightning, or even dissipate the fog. It is an efficient tool, especially in arid areas of the world, where rainfall is minimal under ordinary circumstances.
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Cloud seeding is something people consider in areas where they’re desperate for water. However, cloud seeding should not be thought of as a response to drought.
I do not think so, although it is a useful way to save water and may be better than many other methods of water saving that the wind may carry to other places in the form of clouds, and the best of all is the amount of atmospheric nitrogen installed, which cannot be installed with the same quality when using other irrigation methods.
It can alleviate the water crisis to some extent, but it is not a long-term solution. As far as I understand it, artificial rainfall is too costly financially and requires specific rainfall conditions.
The great challenge of artificial weather modification is the identification and tracking of the most suitable clouds. Without clouds, these technologies are useless. Cloud seeding" may allow us to increase water resources, but it cannot prevent drought because it requires clouds.