Countries worldwide are reviving weather modification techniques, such as cloud seeding, to manage water supply amidst rising demand exacerbated by climate change. The United States and China lead in such efforts, with France, Russia, India, and Saudi Arabia also experimenting with cloud seeding to increase precipitation, clear fog, reduce hail, and address air pollution.
Cloud seeding involves introducing particles like silver iodide to stimulate rainfall, reportedly increasing local precipitation by 5% to 15%. Despite its long history since the 1940s, cloud seeding faced skepticism due to challenges in measuring its success. However, advancements in technology have rekindled interest. Companies like Rainmaker have expanded rapidly, indicating a resurgence in cloud seeding initiatives.
Experts note that the growing reliance on cloud seeding stems from improving data supporting its effectiveness and the pressing need for innovative water resource management options. For instance, China invested significantly in weather modification programs, while Saudi Arabia launched its regional project with substantial funding.
Despite mixed results in some regions, like the unsuccessful trials in India, cloud seeding is emerging as a viable strategy in broader water and air quality management approaches. Experts warn that while cloud seeding can help, it should not be viewed as a standalone solution, and further research is needed to assess its environmental and geopolitical implications.
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