Speaking of Pinatubo
I remember I was visiting the Museum of Science and Industry in Chicago in the summer of 1992. And I remember overhearing one of the workers/guides explaining to someone that temperatures were cooler that summer was because of Mt. Pinatubo's eruption. It makes sense now that I think about it--all the ash spewed during the eruption spread all over and caused more cloud cover than usual. Now whether this was actually the case, who knows, as I was only overhearing this. But it sounds plausible.
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