More Volcanic Eruptions to Come

Those of you living around the UK’s airports are enjoying a rare and prolonged peace and there’s more to come.

Freysteinn Sigmundsson, a volcanologist at the University of Iceland, and Carolina Pagli, a geophysicist at the University of Leeds in England, believe that the pressure created by ice caps on land keeps rocks from forming magma, even if they’re hot enough. That pressure is real. Iceland’s biggest ice cap has lost 10 percent of its volume since 1890 and the surrounding land is rising by almost an inch a year. Sigmundsson and Pagli estimate those changes have created a 1.4km3 sea of magma under the ground. Matthew Cordell, UN Dispatch.

So we can expect more volcanic eruptions and more disruptions to air travel – an unexpected side effect of global warming – I’m sure there are many others. I should add that the experts don’t believe this to be the case in the eruption of Eyjafjallajökulls.

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