Mauro Oliveira, the Webmaster of Geoengineeringwatch.org, was one of the protestors. He claimed that the program for Stratospheric Aerosol Geo-engineering (SAG), AKA chemtrails, has been well under way around the world. As a matter of fact, Oliveira stated that witnesses from around the globe claim that heavy aerosol spraying is occurring almost every day over just about every city. He went on to explain the difference between a contrail and a chemtrail. He stated that when a jet airplane flies at a certain altitude, a visible trail of streaks of condensed water vapor sometimes form in the wake of the aircraft. This is called a contrail. Contrails are normal and usually dissipate in a few seconds. They are very similar to when we breathe in cold weather. According to Oliveira, what occurs behind a SAG plane spraying aerosols is quite different. What can be seen is a thick white line also called a chemtrail that lingers in the sky for several hours. The SAG lines are sprayed into the upper atmosphere and then spread out forming what then appear to be clouds. The particles from these aerosols then fall to the ground where they enter our soil and water and can also be inhaled.