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- 1830sIn the 1830s, Christian Friedrich Schönbein coined the term “ozone” for the odor, riffing off the Greek word ozein, which means “to smell.” Eventually, ozone was discovered to be a gas made from three oxygen atoms. Scientists began to speculate that it was a critical component of the atmosphere and even that it was able to absorb the sun’s rays.
www.smithsonianmag.com/science-nature/ozone-hole-was-super-scary-what-h… - People also ask
Nasa Ozone Watch: Ozone hole history facts
WEBFeb 14, 2023 · History of the Ozone Hole. Throughout the 20th century, discoveries and observations trickled in that would allow scientists to understand how human-made chemicals like chlorofluorocarbons create …
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What happened to the world's ozone hole? - BBC
WEBMar 22, 2022 · Their discovery, the thinning of the ozone layer over Antarctica, came to be known as the ozone hole. As news of the discovery spread, alarm rippled around the world.
WEBJan 13, 2016 · But 30 years after its discovery, the ozone hole just doesn’t have the horror-story connotations it once did. How did the conversation change—and how bad is the …
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Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere, and a much larger springtime decrease in stratospheric ozone (the ozone layer) around Earth's polar regions. The latter phenomenon is referred to as the ozone hole. There are also springtime polar tropospheric ozone depletion events
Wikipedia · Text under CC-BY-SA license- In a report released in early 2023, scientists keeping track of the ozone layer noted that Earth's …
This progress is thanks to the Montreal Protocol on Substances That Deplete the Ozone Layer, a landmark agreement signed by 197 UN member countries in 1987 to phase out ozone-depleting substances. Without the pact, the EPA estimates the U.S. would have seen an additional 280 m… - (Read more about how climate change is a threat to human health.)
Nearly all the ozone-destroying chemicals banned by the Montreal Protocol have been phased out, but some harmful gases are still used. Hydrochlorofluorocarbons (HCFCs), transitional substitutes that are less damaging but still harmful to ozone, are still in use in some countries. H…
- In a report released in early 2023, scientists keeping track of the ozone layer noted that Earth's …
WEBThis series of images shows the Antarctic ozone hole on the day of its maximum depletion in 1979, 1987, 2006, and 2010; that is, the days with the thinnest ozone layer.
The World Acted for the Ozone Layer. Why Not Climate Change?
WEBSep 23, 2019 · A scientist who helped saved the ozone layer in the 1980s weighs in on why it's been harder for science to lead to action on climate change.
Nasa Ozone Watch: Ozone facts
WEBFeb 14, 2023 · What is the Ozone Hole? History of the Ozone Hole What is EESC? What is Ozone? Ozone is a gas made up of three oxygen atoms (O 3). It occurs naturally in …
WEBThe ozone hole is the region over Antarctica with total ozone of 220 Dobson Units or lower. This map shows the ozone hole on October 4, 2004. The data were acquired by the …
NASA SVS | A Brief History of Ozone
WEBSep 30, 2014 · Ozone is a colorless gas mainly found in Earth’s stratosphere. It forms a protective layer that absorbs harmful ultraviolet light from the sun. In 1985, an extreme …
Ozone Layer - Our World in Data
WEBAs a result of human emissions of ozone-depleting substances, concentrations of ozone in the stratosphere – between 10 to 50 kilometers above the earth’s surface – fell rapidly …
Ozone - Wikipedia
WEBOzone (/ ˈ oʊ z oʊ n /) (or trioxygen) is an inorganic molecule with the chemical formula O 3. It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is …
Discovery of Ozone Hole announced - HISTORY
WEBApr 7, 2020 · In the scientific journal Nature on May 16, 1985, three scientists from the British Antarctic Survey announce their detection of abnormally low levels of ozone over …
Ozone Layer - National Geographic Society
WEBOct 19, 2023 · The ozone layer, Earth’s sunscreen, absorbs about 98 percent of this devastating UV light. The ozone layer is getting thinner. Chemicals called …
Ozone layer | Description, Importance, & Facts | Britannica
WEBApr 25, 2024 · The ozone layer effectively blocks almost all solar radiation of wavelengths less than 290 nm from reaching Earth’s surface, including certain types of ultraviolet …
Ozone layer - Wikipedia
WEBThe ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9 to 22 mi) above Earth, although its thickness varies seasonally …
History of the study of atmospheric ozone - NASA
WEBThe history of ozone begins with the clear apprehension, in the year 1840, by Schönbein, that in the odor given off in the electrolysis of water, and accompanying discharges of …
NASA Ozone Watch: Latest status of ozone
WEB4 days ago · View the latest status of the ozone layer over the Antarctic, with a focus on the ozone hole. Satellite instruments monitor the ozone layer, and we use their data to …
Ozone depletion | Facts, Effects, & Solutions | Britannica
WEBOzone depletion, gradual thinning of Earth’s ozone layer caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human …
Medical use of adjunct oxygen-ozone therapy and its impact on …
WEB3 days ago · In his recent comment on this journal, Hesley Machado Silva reported criticism about the use of ozone in medicine. He exhibited an outcry against Lula’s Government …
From Early Settlements to Suburbia - Los Angeles Times
WEBSep 2, 1991 · Soon, orange groves were replaced with tract homes and strip centers, as Simi Valley’s population shot up from about 3,000 in 1950 to more than 61,000 in 1970. …
Historical Locations – Strathearn Historical Park and Museum
WEBDiscover the Hidden History of Simi Valley! We’ve moved many historic structures to Strathearn Park to help preserve our history for future generations of our community, …
Santa Susana Train Depot & Museum - Strathearn Historical …
WEBBuilt in 1903 by the Southern Pacific Railroad, the Santa Susana Depot served passengers and farmers in the Simi Valley for more than 60 years. With a classic passenger waiting …
Simi Valley, California - Wikipedia
WEBThe first Europeans to visit Simi Valley were members of the Spanish Portolá expedition (1769–1770), the first European land entry and exploration of the present-day state of …
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