Although stratospheric ozone protects us by filtering out the sun's ultraviolet radiation, tropospheric ozone is a harmful pollutant. A new study has shown that ozone in the lower layers of the atmosphere decreases crop yields ...
Plants & Animals
Apr 5, 2021
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8
The European Union's Earth observation program said Tuesday that the ozone hole over Antarctica has swelled to its largest size and deepest level in years.
Environment
Oct 6, 2020
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32
Ozone levels above the Arctic reached a record low for March, NASA researchers report. An analysis of satellite observations show that ozone levels reached their lowest point on March 12 at 205 Dobson units.
Environment
Apr 16, 2020
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23
A scientific paper published in 1985 was the first to report a burgeoning hole in Earth's stratospheric ozone over Antarctica. Scientists determined the cause to be ozone-depleting substances—long-lived artificial halogen ...
Earth Sciences
Jan 20, 2020
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A new paper quantifying small levels of iodine in Earth's stratosphere could help explain why some of the planet's protective ozone layer isn't healing as fast as expected.
Earth Sciences
Jan 13, 2020
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209
A new study demonstrates that the recovery of the Antarctic Ozone Hole causes decreases in clouds over Southern Hemisphere (SH) high latitudes and increases in clouds over the SH extratropics. The decrease in clouds leads ...
Earth Sciences
Sep 30, 2019
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35
Since the Antarctic ozone hole was detected in 1985, depletion of the ozone layer—the "big umbrella" that protects all life on Earth—has raised considerable concern. The efforts of international communities led to the ...
Environment
Jul 15, 2019
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67
NASA research scientist Tom Hanisco set out to build an instrument capable of measuring a short-lived chemical that cleanses the atmosphere of methane—a potent greenhouse gas—but found instead that his discovery outshined ...
Environment
Apr 30, 2019
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12
The ozone layer - which protects us from harmful ultraviolet radiation - is recovering at the poles, but unexpected decreases in part of the atmosphere may be preventing recovery at lower latitudes.
Environment
Feb 6, 2018
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475
For the first time, scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion.
Earth Sciences
Jan 4, 2018
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