Material Options
Precursor gases such as sulfur dioxide and hydrogen sulfide have been considered. Use of gaseous sulfuric acid appears to reduce the problem of aerosol growth.
Read more about this topic: Stratospheric Sulfate Aerosols (geoengineering)
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“Any so-called material thing that you want is merely a symbol: you want it not for itself, but because it will content your spirit for the moment.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)