The Environmental News Network has an encouraging article that shows how Mother Earth can heal herself when we give her a chance.
In the early 1980s, scientists noted that the layer of ozone in Earth's atmosphere was thinning. This was thought to be due, at least in part, to human use of chemicals, in spray-cans for instance, that depleted the ozone. In 1987, the Montreal Protocol, an international agreement to limit the emission of ozone-depleting chemicals went into effect. Now, scientists are seeing a recovery of the Earth's atmosphere.
"These results confirm the Montreal Protocol and its amendments have succeeded in stopping the loss of ozone in the stratosphere," said Eun-Su Yang of the Georgia Institute of Technology, who led a team that analyzed the data.
"At the current recovery rate ... the global ozone layer could be restored to 1980 levels -- the time that scientists first noticed the harmful effects human activities were having on atmospheric ozone -- sometime in the middle of this century," Yang said in a statement.
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