Wednesday, December 24, 2014

Volcano and weather

Hard-to-spell volcano not yet a weather player.

Volcano and weather

That Eyjafjallajokull volcano in Iceland may be creating havoc with air travel, but so far it doesn't appear to be posing any threat to weather and climate.

In 1991, the spectacular eruption of Mount Pinatubo in the Phillipines spewed so much ash into the upper atmosphere that the volcanic veil resulted in a worldwide cooling.

So far, said Rutgers University volcano expert Alan Robock, not much in the way of sulfur dioxide has been ejected into the atmosphere by the Icelandic volcano, which blew for a second time yesterday.

However, if the volcano does manage to emit more sulfur dioxide, it could ultimately have an impact.

He noted that the 19th Century Laki eruption in Iceland lasted eight months and had a significant effect on climate.

He added that a similar eruption today could shut down European air travel for six months or more.

 

Tony Wood Inquirer Weather Columnist
About this blog

Everyone talks about the weather, and here we write about it.

When we’re around and conditions warrant, we’ll keep you updated about what’s coming, but we will do our best always to discuss weather and climate developments in context and remind you that nothing in the atmosphere happens in a vacuum.

Tony Wood has been writing about the atmosphere for The Inquirer for 26 years.

Reach Tony at twood@phillynews.com.

Tony Wood Inquirer Weather Columnist
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