Poster's note : jolly exciting stuff. Historians will hopefully inform us as to which regimes faltered at the time
http://onlinelibrary.wiley.com/doi/10.1002/2014GL061205/abstract?utm_content=buffer4dcf0&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer Sulfur budget and global climate impact of the AD 1835 eruption of Cosigüina volcano, Nicaragua† Marc-Antoine Longpré1,*, John Stix2,Cosima Burkert3, Thor Hansteen3andSteffen Kutterolf doi: 10.1002/2014GL061205 Keywords: Volcanic eruption;Climate impact;Sulfur budget; Abstract Large explosive volcanic eruptions can inject massive amounts of sulfuric gases into the Earth's atmosphere and, in so doing, affect global climate. The January 1835 eruption of Cosigüina volcano, Nicaragua, ranks among the Americas’ largest and most explosive historical eruptions, but whether it had effects on global climate remains ambiguous. New petrologic analyses of the Cosigüina deposits reveal that the eruption released enough sulfur to explain a prominent ca. AD 1835 sulfate anomaly in ice cores from both the Arctic and Antarctic. A compilation of temperature-sensitive tree-ring chronologies indicates appreciable cooling of the Earth's surface in response to the eruption, consistent with instrumental temperature records. We conclude that this eruption represents one of the most important sulfur-producing events of the last few centuries and had a sizable climate impact rivaling that of the 1991 eruption of Mount Pinatubo. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
