Cloud Seeding with Silver Iodide is Back
Cloud seeding – a silver-based technology used worldwide for more than 50 years to increase rainfall – is making a comeback. For example, some drought areas in Texas are boosting rainfall by about fifteen percent annually, an additional two inches, due to cloud seeding, according to the West Texas Weather Modification Association, a rain enhancement group based in the City of San Angelo. Other U.S. states are currently seeding or considering official programs, including Arizona, Idaho, California, and Colorado, although local jurisdictions often cloud seed independently. Mexican officials have commenced seeding in five states. Dubai, a city in the United Arab Emirates, has cloud seeded, and last year, China, which has the world’s most active clouding seeding programs, used it to help replenish the Yangtse river basin, areas of which are in drought conditions. In total, more than a dozen countries have cloud seeding efforts. In a twist, Chinese authorities seeded clouds prior to the Beijing Olympics in 2008 to drain moisture from clouds before the games so athletes would not compete in wet weather.