Volcano eruption in 2011.
Icelandic authorities have recently raised the threat level of the Grímsvötn volcano.
Katla last erupted in 1918 – but there is no evidence to suggest that it will erupt again soon.
ICELANDIC GLACIAL LANDSCAPES / wiki
We can't say that Katla in Iceland is 'due' to erupt, no matter what you have read.
The saga of Öræfajökull suggests we should take small earthquakes in the region seriously.
Could Katla do this?
One of Iceland's most active volcanoes is showing signs of waking up after nearly 100 years.
Piton de la Fournaise or “Peak of the Furnace” on Reunion Island is one of the world’s most active volcanoes, shown erupting in August 2015.
What happens beneath the surface before a volcano erupts? Can we predict when one will blow? And how can typhoons and melting glaciers contribute to big eruptions?
So serious are the effects of air pollution on human health - the WHO recently categorised it as carcinogenic, responsible for 223,000 deaths a year worldwide - that it is easy to neglect its wider impact…