'Grindavik remains at risk': Attempts to dam the lava from Iceland's erupting volcano could fail‚ volcanologist warns
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'Grindavik remains at risk': Attempts to dam the lava from Iceland's erupting volcano could fail‚ volcanologist warns

Dams built to protect the Icelandic town of Grindavík from rushing lava may not be enough‚ a volcanologist cautions.