All particles that reach the atmosphere cause different chemical reactions. Particles come partly from natural sources such as volcanic eruptions and forest fires, and partly from pollution and emissions. Aerosol researcher ...
Earth Sciences
Oct 9, 2023
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Climate change is driving more intense and more frequent heat waves, which in turn generate a "witch's brew" of pollutants, threatening the health of humans and other living things, the UN warned Wednesday.
Environment
Sep 6, 2023
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Since the discovery of the Antarctic ozone hole in the 1980s, numerous studies have pointed out that this depletion of ozone in the Antarctic has important impacts on global climate change, and that the changes in Antarctic ...
Environment
Feb 16, 2023
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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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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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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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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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This week marks the 30th anniversary of the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer. The signing of the Montreal Protocol was a landmark political event. The treaty is the first in the ...
Environment
Sep 12, 2017
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The International Space Station (ISS) will soon get an important tool capable of conducting highly accurate measurements of aerosols and gaseous constituents in the stratosphere and troposphere. The Stratospheric Aerosol ...
Space Exploration
Jan 17, 2017
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3
To mark the peak of ozone hole season, we're highlighting four ways that climate and the ozone hole are related—and one important way they aren't. But before you read any further, please take a few moments to enjoy a gorgeous ...
Earth Sciences
Nov 11, 2016
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