Controlling the weather may still be years away, but scientists and farmers are using a technology called cloud seeding, which makes water
The cloud seeding technique involves modification in the structure of the cloud by adding dense particles to induce precipitation. Dry ice, i.e., solid carbon
# 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.
This article delves into the science behind cloud seeding, exploring its methods, global applications, and the discussions around its effectiveness and environmental impact, particularly in the context of climate change. As cloud seeding becomes more widely used, understanding its potential benefits and risks is crucial for shaping future environmental strategies. ## What is cloud seeding? ### Effects of cloud seeding. | Weather Modification | In regions prone to drought, cloud seeding can be used to mitigate the adverse effects of prolonged dry periods. ## Where is cloud seeding used? In the United States, states like California, Texas, and Colorado - which frequently face water scarcity issues - seed clouds to increase precipitation. **One of the main concerns with cloud seeding is its potential environmental impact.**. ### The claims about cloud seeding. This weather system at play was so significant that cloud seeding operations would have had a negligible effect on the outcome. ## Climate change and cloud seeding.
* Idaho Department of Water Resources - Science Behind Cloud Seeding. * WebMD - What to Know About Cloud Seeding. * The Edwards Aquifer - Cloud Seeding. * CBC - How cloud seeding can make it rain or prevent extreme weather. # cloud seeding. Cloud seeding can produce an extra 5 to 15% of precipitation. The effectiveness of cloud seeding remains a matter of some debate. However, the results of cloud seeding operations are sometimes significant enough to reduce drought conditions over a limited area. One cloud seeding operation over Idaho in 2017, for example, produced 704 million liters (186 million gallons) of rain—that is, roughly the amount needed to cover about 800 acres (1.25 square miles) with 2.54 cm (one inch) of rain. Still, cloud seeding operations are not practical over large areas, and studies suggest that they affect less than 1 percent of the total water budget of a given seeded area.
WHAT IS CLOUD SEEDING? Cloud seeding is a weather-modification technique that enhances natural rain through the addition of particulates to
With cloud seeding, small particles of silver iodide, a salt with a crystalline structure similar to that of ice, are added to clouds. This
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).