Giant Icelandic volcano is 'about to erupt' on scale that dwarfs explosion which halted air travel across Europe

A giant and 'highly hazardous' volcano in Iceland is showing signs that it could erupt on a scale that dwarfs the explosion that disrupted worldwide air travel eight years ago.

Scientists have warned that Katla, a close neighbour to Eyjafjallajokull that erupted in 2010, is showing clear signs it's going to blow for the first time since 1918 and it's not a matter of if, but when.

Katla's cone is hidden beneath a glacier on a 5,000ft peak, making monitoring its activity difficult but Icelandic and British scientists have found by airborne measurement techniques that Katla is releasing carbon dioxide on a 'huge' scale..

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