New Icelandic volcano eruption could have global impact

Hundreds of metres under one of Iceland's largest glaciers are signs of a looming volcanic eruption that could be one of the most powerful the country has seen in almost a century, reports Jane O'Brien for BBC. In 1783, volcanoes in the area erupted continuously for eight months, generating so much ash, hydrogen fluoride and sulphur dioxide that it killed one in five Icelanders and half of the country's livestock. "And it actually changed the Earth's climate," says Ford Cochran, the National Geographic's expert on Iceland.