The chemicals used in cloud seeding might be potentially harmful to plants, animals, and people, or the environment.What are the Challenges involved in Cloud Seeding? Cloud seeding can transform typically dry areas much more hospitable to enhance tourism.E.g.: Recently, the Central Pollution Control Board along with other researchers mulled the use of cloud seeding to tackle Delhi’s air pollution.Cloud seeding can potentially be used to settle down toxic air pollutants through the rain.in 1962 for weather modification through cloud seeding aimed at fog dispersal, hail suppression, and cyclone modification. During the winter the cloud seeding programme is used to increase the mountain snowpack so that additional runoff is received during the spring melt season.Fog Dispersal, Hail Suppression, and Cyclone Modification:.Cloud seeding can help to maintain minimum summer flows of the rivers and dilute the impact of treated wastewater discharges from municipalities and industries.Cloud seeding experiments have shown to augment production of hydroelectricity during the last 40 years in Tasmania, Australia.E.g.: ‘Project Varshadhari’ in Karnataka in 2017.It creates rain, providing relief to drought-stricken areas.The process is considered more complex than static cloud seeding because it depends on a sequence of events working properly. It aims to boost vertical air currents, which encourages more water to pass through the clouds, translating into more rain.The moisture is already present in the clouds, but silver iodide essentially makes rain clouds more effective at dispensing their water.The silver iodide provides a crystal around which moisture can condense. It involves spreading a chemical like silver iodide into clouds.The salt grows in size as water joins with them. Disperses salts through flares or explosives in the lower portions of clouds.Cloud seeding increases rainfall rates by approximately 10% to 30% per year and cloud seeding operations cost much less than the desalination process.
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