Plans to implement SAG have been around since at least 1991 – with reports of its activity beginning to surface in the mid 90s. The US Hughes Aircraft Patent #5,003,186 Patented March 26, 1991 called 'Stratospheric Welsbach Seeding For Reduction of Global Warming' proposed injecting into the upper atmosphere a “very fine, white talcum-like” powder of aluminum oxide, barium oxide and other oxides for the stated purpose of reducing Global Warming”. Steve Hamburg, Chief Scientist for Environmental Defence Fund (EDF) and Co Chair of SRMGI said "Solar Radiation Management could be potentially risky when large-scale experiments of this technique are deployed in the real world." Using airliners to spray aluminium powder in an effort to avert global warming is called for in the Welsbach patent. It suggested that tiny metal flakes could be "added to the fuel of jet airliners, so that the particles would be emitted from the jet engine exhaust while the airliner was at its cruising altitude." The Welsbach patent cautioned that the resulting "white skies may be unpopular." And indeed they are! Our blue skies have been stolen from us. SAG has been seen and documented from the ground and is even viewable by satellite. This patent is clearly currently in action exposing the SRGMI as complete farce."
