evidence: Environmental and health impacts are considered minimal due to the low concentrations of substances used. But concerns persist over the potential accumulation of seeding agents in sensitive ecosystems. The practice has a long history, with initial experiments dating back to the 1940s, and has been used for various purposes, including agricultural benefits, water supply augmentation, and event planning. Legal frameworks primarily focus on prohibiting the military or hostile use of weather modification techniques, leaving the ownership and regulation of cloud-seeding activities to national discretion. Despite skepticism and debate over its efficacy and environmental impact, cloud seeding continues to be explored and applied in regions worldwide as a tool for weather modification. [citation needed] [...] In 1978, the U.S. signed the Environmental Modification Convention, which bans the use of weather modification for hostile purposes.[79] [...] - ^ a b "Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques (ENMOD) – UNODA". Archived from the original on 2021-05-29. Retrieved 2021-06-02.