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<br />000127 <br /> <br />noted in the chapter summaries that little or no observ- <br />, able effects have been detected on the environment from <br />the highly insoluble ice-nucleating agents commonly used <br />in weather modification. <br /> <br />"Warburton continues: <br /> <br />'It is very reassuring and important to note the con- <br />clusions reached by Klein from the discussions in <br />Chapter 12, Effects on Humans (from ice-nucleating <br />agents dispersed into the atmosphere): nondetectable <br />tissue effects; Argyria very unlikely; ingested Ag <br />excreted within 24 h; no implication of Ag as either a <br />chronic or malignant disease cause. <br /> <br />'The chapter on Effects on Other Terrestrial Organisms <br />again absolves the impacts of Agl as distinct from <br />silver. It also is concluded here that any effects of <br />silver from weather modification activities are expected <br />not only to be minimal, but also extremely difficult to <br />detect or monitor should they occur.' <br /> <br />"Results of continuing research on the effect of the use of <br />the seeding agent, silver, iodide, on the environment <br />indicate a wide gap between the largest amount of silver <br />likely to accumulate in the environment as the result of <br />individual precipitation management projects (or possible <br />widespread and prolonged application of precipitation <br />management technology) and the smallest amount of silver <br />likely to have an adverse effect on the most sensitive <br />environmental component. The studies lead to the conclu- <br />sion that the likelihood of an aggregate impact of silver <br />iodide from precipitation management activities on the <br />quality of the environment as a whole is still rather <br />remote. <br /> <br />"On the basis of these findings, the conclusion is reached <br />that the SCPP's use of seeding agents in precipitation <br />management research in the Sierra Nevada will have no <br />environmental impact." <br /> <br />6. Impacts on wilderness and s ecial use areas. - The high yield <br />subbaslns 1n t e RB conS1 ere as potent1a candidates for CREST <br />include wilderness and wilderness study areas and other sites of <br />recreational and aesthetic interest. The Skywater Programmatic Final <br />Environmental Statement discusses the effects of cloud seeding research <br />on these areas at length. No identifiable impact on the hydrology or <br />physiography of these areas is expected as a result of changes in <br />precipitation or dispersion of seeding materials resulting from CREST <br />[4, pp. 3-75, 83J. <br /> <br />30 <br /> <br />,- - <br />~~~~---~ ~----~ = ~-~~-=~-- <br />