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EXHIBIT H <br /> WWC-Vail/Beaver Creek <br /> Record of Decision <br /> Vail Public Library-Public Hearing <br /> September 212010 <br /> Weather Modification Association (WMA) <br /> Capability Statement on Weather Modification <br /> Adopted 2005 <br /> Background <br /> It has been established that certain aspects of the weather, specifically <br /> cloud microphysical and precipitation processes, can be intentionally modified <br /> under various circumstances. Beneficial effects, those in which favorable <br /> benefit/cost ratios are realized without producing any detrimental environmental <br /> impacts, can be achieved within each of the major categories of cloud <br /> modification using existing treatment (cloud seeding) methodologies. The <br /> magnitudes and temporal/spatial scales of seeding effects vary between and <br /> within those major categories. It has also been established that unintentional <br /> anthropogenic effects (those caused by human activity) on weather do occur, <br /> and are commonly referred to as inadvertent weather modification. These <br /> inadvertent effects can be manifested by modifications to air quality, <br /> temperatures, and precipitation patterns and intensities. The precipitation effects <br /> can be positive or negative. <br /> Increasing demands are being placed upon existing fresh water supplies <br /> throughout the world. These increasing demands lead to greater sensitivity to <br /> drought and to even moderate precipitation shortfalls. Recent investigations <br /> indicate negative impacts of air pollution on precipitation downwind of some <br /> industrialized areas and areas that practice open burning of vegetation. <br /> Concerns about water supplies are producing increasing interest in the <br /> application of cloud seeding for precipitation augmentation. Hail damage to <br /> crops and property and fog-induced problems continue to produce interest in <br /> their mitigation. These factors, combined with the typically attractive benefit/cost <br /> ratios associated with operational seeding programs, have fostered ongoing and <br /> growing interest in intentional weather modification. <br /> Brief capability statements regarding intentional weather modification by <br /> cloud seeding follow, summarizing the current state of the technology within its <br /> primary application categories. The summaries are limited to conventional <br /> seeding methods that are based on accepted physical principles. A more <br /> detailed treatment of weather modification capabilities and the status of the <br /> discipline can be found in Volume 36 (2004) of the WMA Journal in a review <br /> panel report: The Weather Modification Association Response to the National <br /> Research Council's Report Titled "Critical Issues in Weather Modification <br /> Research." A word of caution is necessary concerning these generalized <br /> capability statements, specifically regarding the transferability of results. <br /> Regional differences in cloud microphysics, atmospheric temperature structure, <br /> frequency of seedable cloud system occurrence, orographic influences, seeding <br />