The Shasta County Board of Supervisors wants to see what's in those white streaks following jet planes in Northern California skies. Supervisors said they want to know if the cloud-like trails are contrails - made of ice and condensed water vapor - or chemtrails, a chemical mixture sprayed to influence weather. In a unanimous decision during their regular meeting July 15, Supervisors David Kehoe, Leonard Moty, Pam Giancomini, Bill Schappel and Chair Les Baugh agreed to determine if the county's current monitoring program is up to detecting the presence of aluminum oxide nano-particles in the air, water and soil. Schappel rejected a suggestion from county staff to rely on federal studies on the issue, stating, Any federal information will be skewed. We need a local study." Giancomini made the motion to investigate. Baugh announced the crowd, which filled chambers with people standing against walls and spilling out into the lobby, was the largest that he had ever seen at a supervisors meeting, ... close to or exceeding the 299 limit. The first member of the audience to comment was Dane Wigington, [who] made a brief presentation on what he called "scientific geo-engineering methods." Asked by Baugh why he thought this was being done, Wigington said he believed it was for influencing the weather. Pointing to the mechanism of spraying chemicals into the upper atmosphere he said, "We have a contamination issue that is a danger to the public."