The Climate Machine: Volcanoes


Volcanoes inject large amounts of ash and reflective soot into the stratosphere. Here Pinatubo is shown from 1991. The impact can also be seen from satellite.

The impact by the soot on longwave radiation is small compared to that in the solar spectrum.

Also, the residence time of soot in the stratosphere is much longer (years) as compared to the residence time in the troposphere (days).


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