http://www.geoengineeringwatch.org/well-known-scientist-sounds-the-alarm-on-geoengineering/ Assuming that Marvin Herndon did in fact send this letter to the San Diego City Council and Mayor's Office, as Wigington reports, does anyone know which specific rainwater analytical data or studies to which he would be referring? I work in the environmental engineering field in the Monterey Bay area and have numerous friends who are convinced that the chemtrail conspiracy is occurring. However, I have had a very difficult time finding any air monitoring, surface water or rainwater analytical data that would indicate anomalous rises in the identified potential contaminants of concern. Looking at environmental quality data regularly, it perplexes me how folks can be targeting this issue above the many other significant and well known sources of contamination (which largely impact poorer communities, like farmworkers). I remain open minded about this subject, and am well aware of the history and current practice of cloud seeding (I worked on organic farms for almost 10 years, some of which was in a large industrial ag setting). Your thoughts as to what data this nuclear chemist is referring to? I hope not Dane Wiginton's data (which has been previously debunked and represents only his localized setting in Shasta).