Tags: Ozone Layer Thinning Over Populated Areas | Scientists Warn

Ozone Layer Thinning Over Populated Areas, Scientists Warn

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By    |   Tuesday, 06 February 2018 12:53 PM

The ozone layer around the planet is thinning over the most populated areas, showing no improvement in the critical protective layer since the 1990s, The Wall Street Journal reported, according to a new study.

The ozone layer protects the Earth from hazardous ultraviolet radiation from the sun that can damage DNA and heighten the risk of cancer and other health problems, the newspaper noted.

While ozone layer in the polar region is recovering from past thinning, scientists detected a drop in the amount of ozone in recent years at lower levels of the stratosphere in nonpolar regions, according to a study led by 22 scientists at research centers in the United States and Europe, per the Journal.

According to The Guardian, the new research, which was published in the journal Atmospheric Chemistry and Physics, carefully combined measurements of atmospheric ozone from 11 different datasets to produce a record of the last 30 years.

"The reasons for the continued reduction of lower stratospheric ozone are not clear; models do not reproduce these trends, and thus the causes now urgently need to be established," scientists said in the study's abstract.

The research examined the ozone levels between the 60th parallels, an area that ranges from Scandinavia, Russia and Alaska in the north to the tip of South America, The Guardian said.

"It means that overall we are not seeing a recovery," data scientist Justin Alsing at the Center for Computational Astrophysics at the Flatiron Institute in New York, told the Journal. "The ozone layer at mid-latitudes is at least as bad as it has ever been."

The ozone layer hole over Antarctica has been closing since the chemicals causing the problem were banned by the Montreal protocol, The Guardian noted.

"The study is in lower to mid latitudes, where the sunshine is more intense, so that is not a good signal for skin cancer," said Joanna Haigh at Imperial College London, a member of the international research team, per The Guardian.

"It is a worry. Although the Montreal protocol has done what we wanted it to do in the upper stratosphere, there are other things going on that we don’t understand," Haigh said.

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The ozone layer around the planet is thinning over the most populated areas, showing no improvement in the critical protective layer since the 1990s, according to a new study.
Ozone Layer Thinning Over Populated Areas, Scientists Warn
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2018-53-06
Tuesday, 06 February 2018 12:53 PM
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