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preventionweb.net
news
https://www.preventionweb.net/news/how-make-it-rain-cloud-seeding-combat-drought
# How to make it rain: Cloud seeding to combat drought. With cloud seeding, small particles of silver iodide, a salt with a crystalline structure similar to that of ice, are added to clouds. The method allows the water vapor inside clouds to be "tricked" into forming droplets around the silver iodide particles, Jose Miguel Vinas, a meteorologist with Meteored, a Spanish company that runs weather websites in several countries, told DW. The way the process works explains why Beijing is currently struggling to cloud seed: There is a need for at least some clouds to already be in the parts of the sky where you want to induce rain, and some of the regions in China that need water most desperately don't have enough cloud cover for the method to work. * Cloud seeding might not be as promising as drought-troubled states hope. Please note: Content is displayed as last posted by a PreventionWeb community member or editor.
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facebook.com
news
https://www.facebook.com/groups/996740304800316/posts/1018341432640203/
The premise is to mix a harmless chemical, silver iodide, into a cloud to bond with water droplets, making them heavier, and causing them to
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8msolar.com
article
https://8msolar.com/solar-powered-cloud-seeding-combating-drought-with-clean-…
Solar-powered cloud seeding represents a breakthrough in climate adaptation, using clean energy to enhance precipitation in water-stressed regions. The transition from traditional to solar-powered cloud seeding represents a shift in operational costs and environmental impact. Solar-powered cloud seeding installations integrate power management systems that optimize efficiency. Modern solar-powered cloud seeding installations employ control systems that integrate weather monitoring, power management, and seeding operations. Each solar-powered installation reduces carbon emissions by 12-15 metric tons annually compared to conventional systems.Systems achieve carbon neutrality within 2.5 years of operation. Solar-powered cloud seeding installations employ sophisticated IoT (Internet of Things) frameworks to optimize operational efficiency. Solar-powered cloud seeding systems demonstrate adaptability across differing climate zones. As climate change continues to affect global precipitation patterns, the role of solar-powered cloud seeding in water resource management becomes increasingly significant. With demonstrated precipitation increases of 15-35% under optimal conditions and operational cost reductions exceeding 70%, solar-powered cloud seeding provides a practical solution for regions facing water scarcity challenges.
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scientificamerican.com
article
https://www.scientificamerican.com/article/eight-states-are-seeding-clouds-to…
Today, cloud seeding research represents the cutting edge of weather and climate science—a convergence of questions about the influence of warming on our dwindling water resources and our ability to control those consequences. With these new and improved technologies, the SNOWIE project catapulted cloud seeding research to the cutting edge of weather and climate science. “The question is not anymore, ‘Does cloud seeding work?’” said Sarah Tessendorf, an atmospheric scientist with the National Center for Atmospheric Research and another scientist who worked on the SNOWIE project. Thanks to recent advancements in computer models, scientists can now simulate the effects of silver iodide on clouds—and they can use these simulations to conduct controlled experiments, exactly the kinds of studies that cloud seeding research has been missing. “I really feel like today, in this day and age, we are at a pretty exciting stage with the science behind cloud seeding, being that we’ve been able to collect some really great data over the last few years,” Tessendorf said.
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e360.yale.edu
research
https://e360.yale.edu/features/can-cloud-seeding-help-quench-the-thirst-of-th…
Desperate for water, several Western states have expanded decades-old programs to increase precipitation through cloud seeding, a method of weather modification that entails releasing silver iodide particles or other aerosols into clouds to spur rain or snowfall. In the U.S. West, the need for water is so acute and cloud seeding so cheap that even a very slight increase in precipitation is worth it, says Friedrich. Cloud seeding operators submit annual reports to states estimating additional precipitation caused by their efforts, often claiming hundreds of thousands of additional acre-feet, but “it’s kind of crude,” says Eric Hjermstad, who runs Western Weather Consultants, a cloud seeding company that manages several seeding operations in Colorado. Cloud seeding costs money, but the cost is relatively low compared to the value of water, even if the reports overstate increased precipitation, proponents say. “Cloud seeding may be putting the clouds back to a more efficient state where they may have been prior to humans,” he says.
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wmo.int
article
https://wmo.int/events/cop-event-science-climate-action-pavilion/climate-chan…
# Climate change mitigation through weather modification: cloud seeding as a global case study. Climate change mitigation through weather modification global case study..png"). Rain Enhancement, also known as cloud seeding, offers a sustainable source of fresh water by enhancing rainfall from specific clouds under specific conditions. Weather modification, specifically Rain Enhancement and cloud seeding technologies, plays a crucial role in the broader context of climate change mitigation and building climate resilience. By enhancing our capacity to optimize rainfall and manage water resources more effectively, we take strides toward addressing climate change-induced water scarcity. This event, hosted by the UAE National Center of Meteorology (NCM), will feature a diverse array of speakers, including experts and researchers from global entities like the WMO's Weather Modification Expert Team, the US Weather Modification Association, the European Geosciences Union (EGU), as well as NCM and its UAE Research Program for Rain Enhancement Science (UAEREP).
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en.wikipedia.org
article
https://en.wikipedia.org/wiki/Cloud_seeding
Based on its findings, Stanford University ecologist Jerry Bradley said: "I think you can squeeze out a little more snow or rain in some places under some conditions, but that's quite different from a program claiming to reliably increase precipitation." Data similar to that of the NAS study was acquired in a separate study conducted by the Wyoming Weather Modification Pilot Project, but whereas the NAS study concluded that "it is difficult to show clearly that cloud seeding has a very large effect", the WWMPP study concluded that "seeding could augment the snowpack by a maximum of 3% over an entire season.". In 2016, Jeff Tilley, director of weather modification at the Desert Research Institute in Reno, claimed that new technology and research has produced reliable results that make cloud seeding a dependable and affordable water supply practice for many regions. **^** "Weather Modification Association (WMA) Position on the Environmental Impact of using Silver Iodide as a Cloud Seeding Agent" (PDF).
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dri.edu
research
https://www.dri.edu/cloud-seeding-program/what-is-cloud-seeding/
## What is Cloud Seeding? Illustration on how cloud seeding works with silver iodide rising into the clouds and resulting in ice crystals that grow large enough to fall as snow. ## How we Cloud Seed. Most cloud seeding operations, including those run by DRI, use a compound called silver iodide (AgI) to aid in the formation of ice crystals. When storm systems move through one of our cloud seeding project areas, a solution containing a small amount of silver iodide is burned from ground-based generators or released from aircraft. Cloud seeding is used all over the world as a method for enhancing winter snowfall and increasing mountain snowpack, supplementing the natural water supply available to communities of the surrounding area. At a study site in the Snowy Mountains of New South Wales, Australia, a five-year cloud seeding project designed by DRI resulted in a 14 percent increase in snowfall across the project area.