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Tag Archives: ozone

The ozone in the northern hemisphere has increased over the past 20 years

Photo credit: CC0 Public Domain In a very first study using ozone data collected from commercial airliners, researchers from the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder found that pollutant levels in the lowest part of the Earth’s atmosphere have increased throughout the northern hemisphere in the past 20 years. This is true …

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The world’s most mysterious mass extinction may have had an ozone depletion component

Throughout history, Earth has experienced at least five major mass extinctions that have wiped out most of the life around the world. Most of these events coincided fairly clearly with disasters such as asteroid strikes, geological activities and volcanic eruptions. However, an event is more of a mystery – the extinction of the late Devonian 360 million years ago. We …

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Mass extinction 360 m years ago due to ozone layer erosion

A mass extinction 360 million years ago, in which many plants and freshwater animals on earth were killed, was caused by the depletion of the ozone layer. Scientists at the University of Southampton found evidence that high UV radiation was destroying the old forest ecosystem. This newly discovered extinguishing mechanism was caused by changes in Earth’s temperatures and climate cycle …

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The study shows the erosion of the ozone layer, which is responsible for the mass extinction

Normal and malformed spores from East Greenland. Photo credit: John Marshall Researchers at the University of Southampton have shown that an extinction 360 million years ago in which a large part of the world’s plant and freshwater organisms was killed was caused by a brief depletion of the ozone layer, which protects the earth from harmful ultraviolet (UV) radiation . …

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Ozone layer: Concern about the threat of substitute chemicals is growing

Image rights University of Alberta Image description Drilled and packaged ice core samples in the Arctic ready for processing Substances that are used in almost all new cars for air conditioning build up in the environment and, according to researchers, can pose a risk to human health. These “ozone friendly” chemicals have been introduced to replace products that damage the …

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Earth repaired its largest hole in the ozone layer

While many of our schedules have slowed somewhat due to COVID-19, Earth is still working pretty hard. Yes, we still benefit from its air, its maintenance and the pure joy of its natural beauty. But our planet has just done something great for its own good. CBS News reports that Earth’s massive Artic ozone layer hole no longer exists. The …

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The largest arctic ozone hole ever recorded has been closed

The largest ozone hole in the Arctic is now closed. Copernicus Atmosphere Monitoring Service (CAMS) scientists who monitored the unprecedented Arctic hole announced its closure on April 23. The last time a similar level of chemical ozone depletion was observed in the Arctic was in spring 2011, and ozone depletion in 2020 appears to be on an even stronger course, …

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The largest registered ozone hole in the Arctic closes

Data from the Copernicus Sentinel-5P satellite revealed a mini-ozone hole above the Arctic in 2020. Contains modified Copernicus data (2020) that are processed by DLR / BIRA / ESA Something strange has happened over the Arctic this year if a hole developed in the ozone layer. The European Commission’s Copernicus satellite program followed the unusual event and now has evidence …

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The largest registered ozone hole in the Arctic closes

Amanda Kooser, courtesy of Released 2.35 p.m. PDT, Tuesday, April 28, 2020 Data from the Copernicus Sentinel-5P satellite revealed a mini-ozone hole above the Arctic in 2020. Data from the Copernicus Sentinel-5P satellite revealed a mini-ozone hole above the Arctic in 2020. Photo: Contains modified Copernicus data (2020), processed by DLR / BIRA / ESA Photo: Contains modified Copernicus data …

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