[aerohead]

In 1992,The U.K.Meteorological Office's Hadley Center's computer model,which included stratospheric sulphate aerosol forcing in a General Circulation Model,achieved for the first time,replication in broad terms,observed temperature changes over the past 130-years.
The high-resolution program took 90-days run-time on a supercomputer.
Previous modelling had predicted a warmer Earth.
The sulphate aerosols explained the discrepancy,due to their albedo effect in the upper atmosphere,which mitigated solar forcing.
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The preliminary results were shared with attendees at the Berlin climate conference that year.
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The findings had important policy 'implications'.(fossil-fuels lobbyists' sphincters were probably tighter than a rivet on the Golden Gate Bridge)