Global Cooling - from a volcano. The answer - pollute more, warm us up.
In June 1991, the massive eruption of Mount Pinatubo in the Philippines rocked the Pacific region and led to a global drop in temperature.
"That volcano produced enough ash and aerosols that were injected into the atmosphere that cooled the globe for up to, I think, 2 degrees centigrade for several years," said Peter La Femina, Assistant Professor of Geoscience at the Pennsylvania State University.
[...]
Meanwhile, Katla has the whole range of magmatic compositions from basalt to rhyolite, which are richer in silica.
"So it has the ability to be much, much more explosive," he said.
However, the effect of these gases in the years following their release into the atmosphere are much more complex than just straight cooling.
"Not only did we have global cooling, but there was actually some warming during the Northern Hemisphere winters," said La Femina.
volcano
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