Wednesday, March 22, 2017

OZONE HOLE BIGGEST EVER - CAUSED BY VOLCANO

Calbuco's eruption expanded ozone hole to record size

A new study argues that eruption of the Chilean volcano Calbuco on April 22, 2015 stretched the Antarctic Ozone Hole, the thinnest portion of the ozone shell that shields Earth from harmful radiation, to a record size nearly as large as Africa. It did so by ejecting millions of tiny particles that eat away at the Earth’s ozone layer.
The new study, published in AGU's Geophysical Research Letters, strongly supports a previous study identifying Calbuco as the likely driver of the expansion, said Diane Ivy, an atmospheric scientist at the Massachusetts Institute of Technology and lead author of the new study.

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