"The Calbuco Volcano in Chile has erupted, spewing millions of dust and volcanic ash particles into the atmosphere and lower stratosphere." Slight understateme

"The Calbuco Volcano in Chile has erupted, spewing millions of dust and volcanic ash particles into the atmosphere and lower stratosphere." Slight understatement, maybe? Probably thousands of tonnes, if not millions. The Eyjafjallajökull eruption released about 100 million cubic metres of airborne material[0] [0]: http://en.wikipedia.org/wiki/2010_eruptions_of_Eyjafjallaj%C3%B6kull#Volume_of_erupted_material_and_magma_discharge http://en.wikipedia.org/wiki/2010_eruptions_of_Eyjafjallaj%C...