In 1997, Edward Teller (1908-2003), father of the hydrogen bomb, produced this document:
Global Warming and Ice Ages: I. Prospects For Physics Based Modulation of Global Change which talks about global warming and the 'solution' via scattering particulates of things such as alumina/aluminum.
Please note, "In simple terms, the most notable symptoms of aluminum poisoning are diminishing intellectual function, forgetfulness, inability to concentrate and, in extreme cases, full blown dementia and Alzheimers. Aluminum toxicity also causes bone softening and bone mass loss, kidney and other soft tissue damage and, in large enough doses, can cause cardiac arrest." source
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