Factoid/2020/08/12
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< Beachapedia:Factoid | 2020 | 08
Volcanoes Cause Atmospheric Changes for Long Time
- "In an eruption, super volcanoes can cause enormous destruction locally, but also have major impacts across the globe due to the huge gas and dust emissions to the atmosphere. And as one research group now shows, give major changes in the atmosphere over several years. Based on the Los Chocoyos eruption, scientists from the University of Oslo (UiO), GEOMAR and NCAR simulated emissions of gaseous sulphur and halogen to the atmosphere in pre-industrial times. ... The runs showed that elevated amounts of sulphate and aerosol optical depth (AOD) from the eruption would persist for five years in the atmosphere, and the amount of halogen would remain high for almost 15 years. As a consequence of this change in atmospheric chemistry, the ozone layer would collapse. The researchers found an 80 % reduction in the ozone layer as a global average." - Excerpt from University of Oslo
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