article_snippet.sent: a report in Smithsonian Magazine dust may have blocked sunlight around the world, chilling the air and dropping the Earth's climate into a frigid phase that garnered the year 1816 the "year without a summer," some climatologists believe.
article_snippet.sent: a report in Smithsonian Magazine may have led to frosty crop failures in Europe and North America.
article_snippet.sent: But more recently in 2003, ground temperatures rose high enough to dry out geysers and boil the sap in some trees.
article_snippet.sent: A few inches under the surface, thermometers recorded a temperature of 200 degrees Fahrenheit -- nearly hot enough to boil water.