A new study has suggested that dormant volcanoes could be emitting much more sulfur than previously thought. This could have an effect on climate and air quality models, as sulfur is an important element in providing a cooling effect. The study was conducted using tiny particles trapped in layers of an ice core extracted from central Greenland, showing the make-up of the atmosphere circulating above the Arctic between the years 1200 and 1850. According to the findings, sulfur emissions from dormant volcanoes were much higher than expected. It is thought that sulfur emissions from dormant volcanoes are at least 10 times more than during eruptions, and it could be as much as 30 times more. This could mean that natural sulfur sources are higher than expected, and that the cooling effect sulfur pollutants from industry have had on temperature might have been overestimated. Further research is needed to understand the full extent of aerosol’s influence on global climate.
Dormant Volcanoes Could Be Leaking More Sulfur Than We Thought
A new study suggests that dormant volcanoes could be leaking out much more sulfur than we thought. In fact, we might have underestimated sulfur output from sleeping volcanoes by a factor of three. That could mean a recalibration of climate and air quality models, as sulfur is one of the most important elements in terms of providing a climate cooling effect.
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