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Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth's stratosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone over Earth's polar regions. The latter phenomenon is referred to as the ozone hole. In addition to these well-known stratospheric phenomena, there are also springtime polar tropospheric ozone depletion events.
The details of polar ozone hole formation differ from that of mid-latitude thinning, but the most important process in both is catalytic destruction of ozone by atomic halogens. The main source of these halogen atoms in the stratosphere is photodissociation of man-made halocarbon refrigerants (CFCs, freons, halons). These compounds are transported into the stratosphere after being emitted at the surface. Both types of ozone depletion were observed to increase as emissions of halo-carbons increased.
CFCs and other contributory substances are referred to as ozone-depleting substances (ODS). Since the ozone layer prevents most harmful UVB wavelengths (280–315 nm) of ultraviolet light (UV light) from passing through the Earth's atmosphere, observed and projected decreases in ozone have generated worldwide concern leading to adoption of the Montreal Protocol that bans the production of CFCs, halons, and other ozone-depleting chemicals such as carbon tetrachloride and trichloroethane. It is suspected that a variety of biological consequences such as increases in skin cancer, cataracts, damage to plants, and reduction of plankton populations in the ocean's photic zone may result from the increased UV exposure due to ozone depletion.
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Ozone_depletion
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
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Ozone Depletion
Ozone Depletion -
OZONE DEPLETION
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The phenomenon of ozone depletion and its links to possible hazard to life forms has captured international attention. India is a signatory to the Montreal P... -
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The Antarctic Ozone Hole -- From Discovery to Recovery, a Scientific Journey
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While the ozone hole has been considered by some as a solved problem, in fact its recovery is still many decades away and the effects and interactions of ozone depletion on climate change are just starting to be understood. On the 16th September 2011, embark on an investigative journey through the history and science of the ozone layer, the actions taken to address this major environmental threat and the consequences both for the ozone layer and climate system. This short film seeks out explanations and answers from the scientists closest to the issue. -
Ozone Layer Depletion HD
Ozone Layer Depletion HDOzone Layer Depletion HD
This is a video I made on my own for my science class! All rights obtained. Enjoy this wonderful presentation on the effects of ozone layer depletion by JD D... -
Ozone Layer and it's Depletion [Animation]
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See an organised list of all the animations: http://doctorprodigious.wordpress.com/hd-animations/ -
How CFC's Deplete the Ozone Layer
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Professor Davis gives a short explanation of how chlorofluorocarbons (also known as 'CFCs') deplete the Earth's ozone layer. -
ozone hole
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Ozone Layer & Hole - Video for Kids
Ozone Layer & Hole - Video for KidsOzone Layer & Hole - Video for Kids
Visit http://www.makemegenius.com for more,free science videos for kids. Along-with beneficial rays from sun, there many harmful rays also which come from the sun.These harmful rays are known as ultraviolet rays ( uv rays) .If human skin is exposed too long to UV rays, it can cause cancer. But good news is that most of the harmful UV radiation is absorbed by a layer of ozone gas 20 -- 50 km above the Earth. But few human made chemicals are releasing few gases which are depleting the ozone layer.This video explains the whole ozone layer composition & depletion in an interesting way. -
NASA | Exploring Ozone
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Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 This short video combines dynamic ozone vi... -
What happened to the holes in the ozone layer? | Global Ideas
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No sunbathing without sunscreen - that was a mantra for sun worshippers back in the 1980s. The reason: The sun's dangerous UV-radiation passes through massiv... -
NASA | Why Is the Ozone Hole Getting Smaller?
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For more information: http://www.nasa.gov/content/goddard/2014-antarctic-ozone-hole-holds-steady/#.VFvnQMdi-RI The Antarctic ozone hole reached its annual peak size on Sept. 11, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). The size of this year’s hole was 24.1 million square kilometers (9.3 million square miles) — an area roughly the size of North America. With the increased atmospheric chlorine levels present since the 1980s, the Antarctic ozone hole forms and expands during the Southern Hemisphere spring (August and September). The ozone layer helps shield life on Earth from potentiall -
5.6- Stratospheric Ozone Depletion
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A comprehensive overview spanning the sources of ODS, the chemistry of the ozone hole and its management with HCFC's, widespread compliance and responsible disposal. A brief cost/benefit analysis is included and the principle of common but differentiated responsibility is highlighted. Made specifically for the IB Environmental Systems and Societies course but a useful resource for all students of environmental management. -
Ozone Depletion by Dr. Ravi Agrahari
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Lecture # 11 - Ozone Depletion
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Ozone Depletion
Ozone DepletionOzone Depletion
This video explains Ozone depletion in the Stratosphere, caused by the pollution of man-made compounds in addition to the lack of stratospheric ozone in Anta... -
OZONE DEPLETION
OZONE DEPLETIONOZONE DEPLETION
The phenomenon of ozone depletion and its links to possible hazard to life forms has captured international attention. India is a signatory to the Montreal P... -
Ozone Depletion
Ozone DepletionOzone Depletion
brittany yang katherine kwon dharmesh patel. -
The Antarctic Ozone Hole -- From Discovery to Recovery, a Scientific Journey
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While the ozone hole has been considered by some as a solved problem, in fact its recovery is still many decades away and the effects and interactions of ozone depletion on climate change are just starting to be understood. On the 16th September 2011, embark on an investigative journey through the history and science of the ozone layer, the actions taken to address this major environmental threat and the consequences both for the ozone layer and climate system. This short film seeks out explanations and answers from the scientists closest to the issue. -
Ozone Layer Depletion HD
Ozone Layer Depletion HDOzone Layer Depletion HD
This is a video I made on my own for my science class! All rights obtained. Enjoy this wonderful presentation on the effects of ozone layer depletion by JD D... -
Ozone Layer and it's Depletion [Animation]
Ozone Layer and it's Depletion [Animation]Ozone Layer and it's Depletion [Animation]
See an organised list of all the animations: http://doctorprodigious.wordpress.com/hd-animations/ -
How CFC's Deplete the Ozone Layer
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Professor Davis gives a short explanation of how chlorofluorocarbons (also known as 'CFCs') deplete the Earth's ozone layer. -
ozone hole
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Ozone Layer & Hole - Video for Kids
Ozone Layer & Hole - Video for KidsOzone Layer & Hole - Video for Kids
Visit http://www.makemegenius.com for more,free science videos for kids. Along-with beneficial rays from sun, there many harmful rays also which come from the sun.These harmful rays are known as ultraviolet rays ( uv rays) .If human skin is exposed too long to UV rays, it can cause cancer. But good news is that most of the harmful UV radiation is absorbed by a layer of ozone gas 20 -- 50 km above the Earth. But few human made chemicals are releasing few gases which are depleting the ozone layer.This video explains the whole ozone layer composition & depletion in an interesting way. -
NASA | Exploring Ozone
NASA | Exploring OzoneNASA | Exploring Ozone
Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 This short video combines dynamic ozone vi... -
What happened to the holes in the ozone layer? | Global Ideas
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No sunbathing without sunscreen - that was a mantra for sun worshippers back in the 1980s. The reason: The sun's dangerous UV-radiation passes through massiv... -
NASA | Why Is the Ozone Hole Getting Smaller?
NASA | Why Is the Ozone Hole Getting Smaller?NASA | Why Is the Ozone Hole Getting Smaller?
For more information: http://www.nasa.gov/content/goddard/2014-antarctic-ozone-hole-holds-steady/#.VFvnQMdi-RI The Antarctic ozone hole reached its annual peak size on Sept. 11, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). The size of this year’s hole was 24.1 million square kilometers (9.3 million square miles) — an area roughly the size of North America. With the increased atmospheric chlorine levels present since the 1980s, the Antarctic ozone hole forms and expands during the Southern Hemisphere spring (August and September). The ozone layer helps shield life on Earth from potentiall -
5.6- Stratospheric Ozone Depletion
5.6- Stratospheric Ozone Depletion5.6- Stratospheric Ozone Depletion
A comprehensive overview spanning the sources of ODS, the chemistry of the ozone hole and its management with HCFC's, widespread compliance and responsible disposal. A brief cost/benefit analysis is included and the principle of common but differentiated responsibility is highlighted. Made specifically for the IB Environmental Systems and Societies course but a useful resource for all students of environmental management. -
Ozone Depletion by Dr. Ravi Agrahari
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Lecture # 11 - Ozone Depletion -
What is Ozone Layer? | Mocomi Kids
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http://mocomi.com/ presents: What is Ozone layer? The Ozone layer protects the Earth and its inhabitants from harmful UV rays of the sun. Watch this animated... -
AIR POLLUTION - OZONE DEPLETION BY CFC GASES AND IT'S EFFECTS ON THE ENVIRONMENT
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AP Environmental Science video for chapter 20. Followed by a video quiz here: http://www.youtube.com/watch?v=8BnF2uGq44M&feature;=relmfu The "blank" pages is ... -
Antarctic Ozone Hole
Antarctic Ozone HoleAntarctic Ozone Hole
The Antarctic Ozone Hole is an annual springtime event above Earth's frozen, southernmost continent. Man-made CFCs, naturally occurring Polar Stratospheric Clouds, and the return of sunlight set off incredible destruction of the protective Ozone Layer. This video presents these complicated processes with simple to understand animations. Credits: - Video, Animations, and Narration by Patrick Cullis - CIRES contractor for the Ozone and Water Vapor Group in NOAA's Global Monitoring Division. esrl.noaa.gov/gmd - Antarctica Photography by Patrick Cullis - pcullyphoto.com - Satellite Imagery from NASA's Ozone Watch - ozonewatch.gsfc.nasa.gov - Ch -
Ozone Layer Danger
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Think of the ozone layer as Earth's sunglasses, protecting life on the surface from the harmful glare of the sun's strongest ultraviolet rays, which can caus... -
EVB201 Ozone Depletion
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Ozone Depletion - Role of Halocarbons
Ozone Depletion - Role of HalocarbonsOzone Depletion - Role of Halocarbons
Here's how halocarbons chew through ozone. Cl atoms react with an ozone molecule, but then the bare Cl atom is regenerated! -
PSA: Ozone Depletion
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Ozone Depletion vs Global Warming
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Ozone Depletion
- Order: Reorder
- Duration: 2:45
- Updated: 04 Sep 2014
- author: RIley LaRock
This video explains Ozone depletion in the Stratosphere, caused by the pollution of man-made compounds in addition to the lack of stratospheric ozone in Anta...
http://wn.com/Ozone_Depletion
This video explains Ozone depletion in the Stratosphere, caused by the pollution of man-made compounds in addition to the lack of stratospheric ozone in Anta...
- published: 16 Feb 2013
- views: 9290
- author: RIley LaRock
OZONE DEPLETION
- Order: Reorder
- Duration: 4:06
- Updated: 24 Jul 2014
- author: Pramod Mathur
The phenomenon of ozone depletion and its links to possible hazard to life forms has captured international attention. India is a signatory to the Montreal P...
http://wn.com/OZONE_DEPLETION
The phenomenon of ozone depletion and its links to possible hazard to life forms has captured international attention. India is a signatory to the Montreal P...
- published: 27 Sep 2008
- views: 79828
- author: Pramod Mathur
Ozone Depletion
- Order: Reorder
- Duration: 1:31
- Updated: 06 Jul 2013
- author: brittanyyangg
brittany yang katherine kwon dharmesh patel.
http://wn.com/Ozone_Depletion
brittany yang katherine kwon dharmesh patel.
- published: 02 Jun 2009
- views: 24640
- author: brittanyyangg
The Antarctic Ozone Hole -- From Discovery to Recovery, a Scientific Journey
- Order: Reorder
- Duration: 16:37
- Updated: 15 Sep 2011
While the ozone hole has been considered by some as a solved problem, in fact its recovery is still many decades away and the effects and interactions of ozone depletion on climate change are just starting to be understood.
On the 16th September 2011, embark on an investigative journey through the history and science of the ozone layer, the actions taken to address this major environmental threat and the consequences both for the ozone layer and climate system.
This short film seeks out explanations and answers from the scientists closest to the issue.
http://wn.com/The_Antarctic_Ozone_Hole_--_From_Discovery_to_Recovery,_a_Scientific_Journey
While the ozone hole has been considered by some as a solved problem, in fact its recovery is still many decades away and the effects and interactions of ozone depletion on climate change are just starting to be understood.
On the 16th September 2011, embark on an investigative journey through the history and science of the ozone layer, the actions taken to address this major environmental threat and the consequences both for the ozone layer and climate system.
This short film seeks out explanations and answers from the scientists closest to the issue.
- published: 15 Sep 2011
- views: 65658
Ozone Layer Depletion HD
- Order: Reorder
- Duration: 4:06
- Updated: 03 Sep 2014
- author: ImaginePeacePro
This is a video I made on my own for my science class! All rights obtained. Enjoy this wonderful presentation on the effects of ozone layer depletion by JD D...
http://wn.com/Ozone_Layer_Depletion_HD
This is a video I made on my own for my science class! All rights obtained. Enjoy this wonderful presentation on the effects of ozone layer depletion by JD D...
- published: 09 Apr 2012
- views: 40997
- author: ImaginePeacePro
![Ozone Layer and it's Depletion [Animation]](http://web.archive.org./web/20150819095533im_/http://i.ytimg.com/vi/OMtZC4FV_zM/0.jpg "Ozone Layer and it's Depletion [Animation]")
Ozone Layer and it's Depletion [Animation]
- Order: Reorder
- Duration: 1:23
- Updated: 15 Aug 2014
- author: Biology / Medicine Animations HD
See an organised list of all the animations: http://doctorprodigious.wordpress.com/hd-animations/
http://wn.com/Ozone_Layer_and_it's_Depletion_Animation_
See an organised list of all the animations: http://doctorprodigious.wordpress.com/hd-animations/
- published: 16 Apr 2014
- views: 719
- author: Biology / Medicine Animations HD
How CFC's Deplete the Ozone Layer
- Order: Reorder
- Duration: 5:44
- Updated: 26 Aug 2014
- author: ChemSurvival
Professor Davis gives a short explanation of how chlorofluorocarbons (also known as 'CFCs') deplete the Earth's ozone layer.
http://wn.com/How_CFC's_Deplete_the_Ozone_Layer
Professor Davis gives a short explanation of how chlorofluorocarbons (also known as 'CFCs') deplete the Earth's ozone layer.
- published: 16 Jun 2014
- views: 935
- author: ChemSurvival
- published: 07 Jul 2009
- views: 94331
Ozone Layer & Hole - Video for Kids
- Order: Reorder
- Duration: 1:57
- Updated: 25 Jul 2012
Visit http://www.makemegenius.com for more,free science videos for kids.
Along-with beneficial rays from sun, there many harmful rays also which come from the sun.These harmful rays are known as ultraviolet rays ( uv rays) .If human skin is exposed too long to UV rays, it can cause cancer. But good news is that most of the harmful UV radiation is absorbed by a layer of ozone gas 20 -- 50 km above the Earth. But few human made chemicals are releasing few gases which are depleting the ozone layer.This video explains the whole ozone layer composition & depletion in an interesting way.
http://wn.com/Ozone_Layer_&_Hole_-_Video_for_Kids
Visit http://www.makemegenius.com for more,free science videos for kids.
Along-with beneficial rays from sun, there many harmful rays also which come from the sun.These harmful rays are known as ultraviolet rays ( uv rays) .If human skin is exposed too long to UV rays, it can cause cancer. But good news is that most of the harmful UV radiation is absorbed by a layer of ozone gas 20 -- 50 km above the Earth. But few human made chemicals are releasing few gases which are depleting the ozone layer.This video explains the whole ozone layer composition & depletion in an interesting way.
- published: 25 Jul 2012
- views: 47630
NASA | Exploring Ozone
- Order: Reorder
- Duration: 2:21
- Updated: 10 Aug 2014
- author: NASA Goddard
Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 This short video combines dynamic ozone vi...
http://wn.com/NASA_|_Exploring_Ozone
Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 This short video combines dynamic ozone vi...
- published: 19 Oct 2007
- views: 321567
- author: NASA Goddard
What happened to the holes in the ozone layer? | Global Ideas
- Order: Reorder
- Duration: 2:02
- Updated: 26 Jul 2014
- author: DW (English)
No sunbathing without sunscreen - that was a mantra for sun worshippers back in the 1980s. The reason: The sun's dangerous UV-radiation passes through massiv...
http://wn.com/What_happened_to_the_holes_in_the_ozone_layer?_|_Global_Ideas
No sunbathing without sunscreen - that was a mantra for sun worshippers back in the 1980s. The reason: The sun's dangerous UV-radiation passes through massiv...
- published: 08 Feb 2013
- views: 7289
- author: DW (English)
NASA | Why Is the Ozone Hole Getting Smaller?
- Order: Reorder
- Duration: 1:23
- Updated: 07 Nov 2014
For more information:
http://www.nasa.gov/content/goddard/2014-antarctic-ozone-hole-holds-steady/#.VFvnQMdi-RI
The Antarctic ozone hole reached its annual peak size on Sept. 11, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). The size of this year’s hole was 24.1 million square kilometers (9.3 million square miles) — an area roughly the size of North America.
With the increased atmospheric chlorine levels present since the 1980s, the Antarctic ozone hole forms and expands during the Southern Hemisphere spring (August and September). The ozone layer helps shield life on Earth from potentially harmful ultraviolet radiation that can cause skin cancer and damage plants.
The Montreal Protocol agreement beginning in 1987 regulated ozone depleting substances, such as chlorine-containing chlorofluorocarbons and bromine-containing halons. The 2014 level of these substances over Antarctica has declined about 9 percent below the record maximum in 2000.
“Year-to-year weather variability significantly impacts Antarctica ozone because warmer stratospheric temperatures can reduce ozone depletion,” said Paul A. Newman, chief scientist for atmospheres at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Scientists are working to determine if the ozone hole trend over the last decade is a result of temperature increases or chorine declines. An increase of stratospheric temperature over Antarctica would decrease the ozone hole’s area.
This video is public domain and can be downloaded at:
http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10182
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast:
http://svs.gsfc.nasa.gov/vis/iTunes/f...
Or find NASA Goddard Space Flight Center on Facebook:
http://www.facebook.com/NASA.GSFC
Or find us on Twitter:
http://twitter.com/NASAGoddard
http://wn.com/NASA_|_Why_Is_the_Ozone_Hole_Getting_Smaller?
For more information:
http://www.nasa.gov/content/goddard/2014-antarctic-ozone-hole-holds-steady/#.VFvnQMdi-RI
The Antarctic ozone hole reached its annual peak size on Sept. 11, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). The size of this year’s hole was 24.1 million square kilometers (9.3 million square miles) — an area roughly the size of North America.
With the increased atmospheric chlorine levels present since the 1980s, the Antarctic ozone hole forms and expands during the Southern Hemisphere spring (August and September). The ozone layer helps shield life on Earth from potentially harmful ultraviolet radiation that can cause skin cancer and damage plants.
The Montreal Protocol agreement beginning in 1987 regulated ozone depleting substances, such as chlorine-containing chlorofluorocarbons and bromine-containing halons. The 2014 level of these substances over Antarctica has declined about 9 percent below the record maximum in 2000.
“Year-to-year weather variability significantly impacts Antarctica ozone because warmer stratospheric temperatures can reduce ozone depletion,” said Paul A. Newman, chief scientist for atmospheres at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Scientists are working to determine if the ozone hole trend over the last decade is a result of temperature increases or chorine declines. An increase of stratospheric temperature over Antarctica would decrease the ozone hole’s area.
This video is public domain and can be downloaded at:
http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10182
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast:
http://svs.gsfc.nasa.gov/vis/iTunes/f...
Or find NASA Goddard Space Flight Center on Facebook:
http://www.facebook.com/NASA.GSFC
Or find us on Twitter:
http://twitter.com/NASAGoddard
- published: 07 Nov 2014
- views: 1898
5.6- Stratospheric Ozone Depletion
- Order: Reorder
- Duration: 18:51
- Updated: 31 Aug 2013
A comprehensive overview spanning the sources of ODS, the chemistry of the ozone hole and its management with HCFC's, widespread compliance and responsible disposal. A brief cost/benefit analysis is included and the principle of common but differentiated responsibility is highlighted. Made specifically for the IB Environmental Systems and Societies course but a useful resource for all students of environmental management.
http://wn.com/5.6-_Stratospheric_Ozone_Depletion
A comprehensive overview spanning the sources of ODS, the chemistry of the ozone hole and its management with HCFC's, widespread compliance and responsible disposal. A brief cost/benefit analysis is included and the principle of common but differentiated responsibility is highlighted. Made specifically for the IB Environmental Systems and Societies course but a useful resource for all students of environmental management.
- published: 31 Aug 2013
- views: 7
Ozone Depletion by Dr. Ravi Agrahari
- Order: Reorder
- Duration: 30:30
- Updated: 15 Jun 2015
Lecture # 11 - Ozone Depletion
http://wn.com/Ozone_Depletion_by_Dr._Ravi_Agrahari
Lecture # 11 - Ozone Depletion
- published: 15 Jun 2015
- views: 270
What is Ozone Layer? | Mocomi Kids
- Order: Reorder
- Duration: 3:00
- Updated: 31 Aug 2014
- author: MocomiKids
http://mocomi.com/ presents: What is Ozone layer? The Ozone layer protects the Earth and its inhabitants from harmful UV rays of the sun. Watch this animated...
http://wn.com/What_is_Ozone_Layer?_|_Mocomi_Kids
http://mocomi.com/ presents: What is Ozone layer? The Ozone layer protects the Earth and its inhabitants from harmful UV rays of the sun. Watch this animated...
- published: 06 Nov 2012
- views: 47729
- author: MocomiKids
AIR POLLUTION - OZONE DEPLETION BY CFC GASES AND IT'S EFFECTS ON THE ENVIRONMENT
- Order: Reorder
- Duration: 4:25
- Updated: 04 Dec 2014
http://wn.com/AIR_POLLUTION_-_OZONE_DEPLETION_BY_CFC_GASES_AND_IT'S_EFFECTS_ON_THE_ENVIRONMENT
- published: 04 Dec 2014
- views: 4
Climate Change and Ozone Depletion
- Order: Reorder
- Duration: 12:10
- Updated: 12 Feb 2014
- author: CrystalSparks16
AP Environmental Science video for chapter 20. Followed by a video quiz here: http://www.youtube.com/watch?v=8BnF2uGq44M&feature;=relmfu The "blank" pages is ...
http://wn.com/Climate_Change_and_Ozone_Depletion
AP Environmental Science video for chapter 20. Followed by a video quiz here: http://www.youtube.com/watch?v=8BnF2uGq44M&feature;=relmfu The "blank" pages is ...
- published: 12 Apr 2012
- views: 426
- author: CrystalSparks16
Antarctic Ozone Hole
- Order: Reorder
- Duration: 7:33
- Updated: 19 Sep 2014
The Antarctic Ozone Hole is an annual springtime event above Earth's frozen, southernmost continent. Man-made CFCs, naturally occurring Polar Stratospheric Clouds, and the return of sunlight set off incredible destruction of the protective Ozone Layer. This video presents these complicated processes with simple to understand animations.
Credits:
- Video, Animations, and Narration by Patrick Cullis - CIRES contractor for the Ozone and Water Vapor Group in NOAA's Global Monitoring Division. esrl.noaa.gov/gmd
- Antarctica Photography by Patrick Cullis - pcullyphoto.com
- Satellite Imagery from NASA's Ozone Watch - ozonewatch.gsfc.nasa.gov
- Chlorofluorocarbons (CFCs) by James W. Elkins of NOAA's Global Monitoring Division - esrl.noaa.gov/gmd/hats/publictn/elkins/cfcs.html
- Historical Worldwide CFC Production - AFEAS - afeas.org
http://wn.com/Antarctic_Ozone_Hole
The Antarctic Ozone Hole is an annual springtime event above Earth's frozen, southernmost continent. Man-made CFCs, naturally occurring Polar Stratospheric Clouds, and the return of sunlight set off incredible destruction of the protective Ozone Layer. This video presents these complicated processes with simple to understand animations.
Credits:
- Video, Animations, and Narration by Patrick Cullis - CIRES contractor for the Ozone and Water Vapor Group in NOAA's Global Monitoring Division. esrl.noaa.gov/gmd
- Antarctica Photography by Patrick Cullis - pcullyphoto.com
- Satellite Imagery from NASA's Ozone Watch - ozonewatch.gsfc.nasa.gov
- Chlorofluorocarbons (CFCs) by James W. Elkins of NOAA's Global Monitoring Division - esrl.noaa.gov/gmd/hats/publictn/elkins/cfcs.html
- Historical Worldwide CFC Production - AFEAS - afeas.org
- published: 19 Sep 2014
- views: 13
Ozone Layer Danger
- Order: Reorder
- Duration: 4:18
- Updated: 29 Aug 2014
- author: NASAexplore
Think of the ozone layer as Earth's sunglasses, protecting life on the surface from the harmful glare of the sun's strongest ultraviolet rays, which can caus...
http://wn.com/Ozone_Layer_Danger
Think of the ozone layer as Earth's sunglasses, protecting life on the surface from the harmful glare of the sun's strongest ultraviolet rays, which can caus...
- published: 01 Jun 2013
- views: 31143
- author: NASAexplore
EVB201 Ozone Depletion
- Order: Reorder
- Duration: 9:22
- Updated: 23 May 2015
EVB201. Fernando Paiva, Luiz Falcao, Mauro Sakuma and Megan Goodman.
http://wn.com/EVB201_Ozone_Depletion
EVB201. Fernando Paiva, Luiz Falcao, Mauro Sakuma and Megan Goodman.
- published: 23 May 2015
- views: 142
Ozone Depletion - Role of Halocarbons
- Order: Reorder
- Duration: 5:06
- Updated: 22 Feb 2014
- author: chemistNATE
Here's how halocarbons chew through ozone. Cl atoms react with an ozone molecule, but then the bare Cl atom is regenerated!
http://wn.com/Ozone_Depletion_-_Role_of_Halocarbons
Here's how halocarbons chew through ozone. Cl atoms react with an ozone molecule, but then the bare Cl atom is regenerated!
- published: 05 Jun 2012
- views: 877
- author: chemistNATE
PSA: Ozone Depletion
- Order: Reorder
- Duration: 2:16
- Updated: 31 May 2014
A mini-movie about Ozone depletion
http://wn.com/PSA_Ozone_Depletion
A mini-movie about Ozone depletion
- published: 31 May 2014
- views: 301
Ozone Depletion vs Global Warming
- Order: Reorder
- Duration: 4:43
- Updated: 12 Jun 2013
- author: MsHowlandatDuVal
Ozone Depletion vs Global Warming.
http://wn.com/Ozone_Depletion_vs_Global_Warming
- Playlist
- Chat
2:45
Ozone Depletion
This video explains Ozone depletion in the Stratosphere, caused by the pollution of man-ma...
published: 16 Feb 2013
author: RIley LaRock
Ozone Depletion
Ozone Depletion
This video explains Ozone depletion in the Stratosphere, caused by the pollution of man-made compounds in addition to the lack of stratospheric ozone in Anta...- published: 16 Feb 2013
- views: 9290
- author: RIley LaRock
4:06
OZONE DEPLETION
The phenomenon of ozone depletion and its links to possible hazard to life forms has captu...
published: 27 Sep 2008
author: Pramod Mathur
OZONE DEPLETION
OZONE DEPLETION
The phenomenon of ozone depletion and its links to possible hazard to life forms has captured international attention. India is a signatory to the Montreal P...- published: 27 Sep 2008
- views: 79828
- author: Pramod Mathur
1:31
Ozone Depletion
brittany yang katherine kwon dharmesh patel....
published: 02 Jun 2009
author: brittanyyangg
Ozone Depletion
Ozone Depletion
brittany yang katherine kwon dharmesh patel.- published: 02 Jun 2009
- views: 24640
- author: brittanyyangg
16:37
The Antarctic Ozone Hole -- From Discovery to Recovery, a Scientific Journey
While the ozone hole has been considered by some as a solved problem, in fact its recovery...
published: 15 Sep 2011
The Antarctic Ozone Hole -- From Discovery to Recovery, a Scientific Journey
The Antarctic Ozone Hole -- From Discovery to Recovery, a Scientific Journey
While the ozone hole has been considered by some as a solved problem, in fact its recovery is still many decades away and the effects and interactions of ozone depletion on climate change are just starting to be understood. On the 16th September 2011, embark on an investigative journey through the history and science of the ozone layer, the actions taken to address this major environmental threat and the consequences both for the ozone layer and climate system. This short film seeks out explanations and answers from the scientists closest to the issue.- published: 15 Sep 2011
- views: 65658
4:06
Ozone Layer Depletion HD
This is a video I made on my own for my science class! All rights obtained. Enjoy this won...
published: 09 Apr 2012
author: ImaginePeacePro
Ozone Layer Depletion HD
Ozone Layer Depletion HD
This is a video I made on my own for my science class! All rights obtained. Enjoy this wonderful presentation on the effects of ozone layer depletion by JD D...- published: 09 Apr 2012
- views: 40997
- author: ImaginePeacePro
1:23
Ozone Layer and it's Depletion [Animation]
See an organised list of all the animations: http://doctorprodigious.wordpress.com/hd-anim...
published: 16 Apr 2014
author: Biology / Medicine Animations HD
Ozone Layer and it's Depletion [Animation]
Ozone Layer and it's Depletion [Animation]
See an organised list of all the animations: http://doctorprodigious.wordpress.com/hd-animations/- published: 16 Apr 2014
- views: 719
- author: Biology / Medicine Animations HD
5:44
How CFC's Deplete the Ozone Layer
Professor Davis gives a short explanation of how chlorofluorocarbons (also known as 'CFCs'...
published: 16 Jun 2014
author: ChemSurvival
How CFC's Deplete the Ozone Layer
How CFC's Deplete the Ozone Layer
Professor Davis gives a short explanation of how chlorofluorocarbons (also known as 'CFCs') deplete the Earth's ozone layer.- published: 16 Jun 2014
- views: 935
- author: ChemSurvival
1:57
Ozone Layer & Hole - Video for Kids
Visit http://www.makemegenius.com for more,free science videos for kids.
Along-with bene...
published: 25 Jul 2012
Ozone Layer & Hole - Video for Kids
Ozone Layer & Hole - Video for Kids
Visit http://www.makemegenius.com for more,free science videos for kids. Along-with beneficial rays from sun, there many harmful rays also which come from the sun.These harmful rays are known as ultraviolet rays ( uv rays) .If human skin is exposed too long to UV rays, it can cause cancer. But good news is that most of the harmful UV radiation is absorbed by a layer of ozone gas 20 -- 50 km above the Earth. But few human made chemicals are releasing few gases which are depleting the ozone layer.This video explains the whole ozone layer composition & depletion in an interesting way.- published: 25 Jul 2012
- views: 47630
2:21
NASA | Exploring Ozone
Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/...
published: 19 Oct 2007
author: NASA Goddard
NASA | Exploring Ozone
NASA | Exploring Ozone
Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 This short video combines dynamic ozone vi...- published: 19 Oct 2007
- views: 321567
- author: NASA Goddard
2:02
What happened to the holes in the ozone layer? | Global Ideas
No sunbathing without sunscreen - that was a mantra for sun worshippers back in the 1980s....
published: 08 Feb 2013
author: DW (English)
What happened to the holes in the ozone layer? | Global Ideas
What happened to the holes in the ozone layer? | Global Ideas
No sunbathing without sunscreen - that was a mantra for sun worshippers back in the 1980s. The reason: The sun's dangerous UV-radiation passes through massiv...- published: 08 Feb 2013
- views: 7289
- author: DW (English)
1:23
NASA | Why Is the Ozone Hole Getting Smaller?
For more information:
http://www.nasa.gov/content/goddard/2014-antarctic-ozone-hole-holds-...
published: 07 Nov 2014
NASA | Why Is the Ozone Hole Getting Smaller?
NASA | Why Is the Ozone Hole Getting Smaller?
For more information: http://www.nasa.gov/content/goddard/2014-antarctic-ozone-hole-holds-steady/#.VFvnQMdi-RI The Antarctic ozone hole reached its annual peak size on Sept. 11, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). The size of this year’s hole was 24.1 million square kilometers (9.3 million square miles) — an area roughly the size of North America. With the increased atmospheric chlorine levels present since the 1980s, the Antarctic ozone hole forms and expands during the Southern Hemisphere spring (August and September). The ozone layer helps shield life on Earth from potentially harmful ultraviolet radiation that can cause skin cancer and damage plants. The Montreal Protocol agreement beginning in 1987 regulated ozone depleting substances, such as chlorine-containing chlorofluorocarbons and bromine-containing halons. The 2014 level of these substances over Antarctica has declined about 9 percent below the record maximum in 2000. “Year-to-year weather variability significantly impacts Antarctica ozone because warmer stratospheric temperatures can reduce ozone depletion,” said Paul A. Newman, chief scientist for atmospheres at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Scientists are working to determine if the ozone hole trend over the last decade is a result of temperature increases or chorine declines. An increase of stratospheric temperature over Antarctica would decrease the ozone hole’s area. This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10182 Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f... Or find NASA Goddard Space Flight Center on Facebook: http://www.facebook.com/NASA.GSFC Or find us on Twitter: http://twitter.com/NASAGoddard- published: 07 Nov 2014
- views: 1898
18:51
5.6- Stratospheric Ozone Depletion
A comprehensive overview spanning the sources of ODS, the chemistry of the ozone hole and ...
published: 31 Aug 2013
5.6- Stratospheric Ozone Depletion
5.6- Stratospheric Ozone Depletion
A comprehensive overview spanning the sources of ODS, the chemistry of the ozone hole and its management with HCFC's, widespread compliance and responsible disposal. A brief cost/benefit analysis is included and the principle of common but differentiated responsibility is highlighted. Made specifically for the IB Environmental Systems and Societies course but a useful resource for all students of environmental management.- published: 31 Aug 2013
- views: 7
photo: WN / Yolanda Leyba
19 Aug 2015
NY Times. The Art Of Dying Well. In the latest New York Times "Fixes" column, Courtney E. Martin spotlights the Zen Hospice Project, a San Francisco nonprofit that brings the practice of mindfulness into hospice care in order to help the dying focus on the present moment. "For someone who is dying, the past can be too complicated to contemplate and the future is jarringly unknown," Martin writes ... . Another plus ... B.J ... MORE. ... ....
photo: AP / Sunday Alamba
18 Aug 2015
KANO. At least 150 people drowned in a river or were shot dead fleeing Boko Haram gunmen who raided a remote village in Nigeria's northeastern Yobe State, local residents said on Tuesday. Dozens of militants arrived on motorcycles and in a car on Thursday last week and opened fire, scattering terrified residents of Kukuwa-Gari. “They opened fire instantly, which forced residents to flee. They shot a number of people ... Also read ... ....
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Huffington Post
18 Aug 2015
In 2014, the United Nations’ Scientific Assessment of Ozone Depletion, which summarizes the , found that the Earth’s protective ozone layer is on track to recover by 2050 ... The recovery is in large part due to international cooperation to reduce and eliminate the use of ozone-depleting chemicals, which came out of the Montreal Protocol, a deal struck in 1987, less than 10 years after scientists discovered the ozone hole....
Edit
Trane Exhibits First Air-Cooled Chiller with Climate-Friendly Refrigerant DR-55 at IIR International Conference of Refrigeration
Stockhouse16 Aug 2015
commercial building space ... The International Institute of Refrigeration (IIR, www.iifiir.org) is the only independent intergovernmental organization which promotes knowledge of refrigeration and associated technologies to address today's major issues, including food safety, protection of the environment (reduction of global warming, prevention of ozone depletion), and the development of the least developed countries (food, health) ... ....
Edit
Jamaica Observer
13 Aug 2015
GOVERNMENT yesterday paid just over half a million dollars to spray-foam manufacturing company SEAL Sprayed Solutions for ceasing to import and use a chemical that contributes to ozone depletion and global warming -- hydrochlorofluorocarbons (HCFCs) ... The compound, experts say, has the highest ozone-depleting potential of all HCFCs....
Edit
Public Technologies
12 Aug 2015
The newly founded, full-fledged recycling plant in Eskişehir is competently facilitated to collect chlorofluorocarbons (CFCs) present in old refrigerators which are among the most prominent ozone depleting compounds within a closed system ... in old refrigerators which are among the most prominent ozone depleting compounds within a closed system....
Edit
Tampa Bay Online
09 Aug 2015
As expected, Republicans are lacerating President Barack Obama’s plan to aggressively cut carbon emissions. And the president’s critics may be right that his proposal represents an abuse of power and an economic threat ... In the past, American industries have revised practices to address environmental threats — including acid rain and ozone depletion — without economic harm ... The stakes are high here ... ....
Edit
The Miami Herald
08 Aug 2015
In committing the United States to regulate and then phase out ozone-depleting substances, Reagan was greatly influenced by his advisers’ powerful demonstration that the benefits would dwarf the costs ... True, climate change presents a far more challenging problem than ozone depletion, because more countries are involved, and it’s more expensive to lower emissions significantly than it was to phase out ozone-depleting substances....
Edit
The Australian
07 Aug 2015
Do you remember the Y2K bug, the computer programming flaw that threatened to reset the digital world to the year zero at the turn of the century? Hospital life support systems might stop. Planes might lose navigation. Everyone’s bank accounts might reset to zero ... And then on New Year’s Day 2000 … nothing. Phew, that was close ... Same modus operandi as Y2K ... Computer bug? Check ... Ozone depletion? Oh please, that is so 80s ... ....
Edit
All Africa
06 Aug 2015
[Financial Gazette] Government is currently struggling to control the ODS because of its porous borders.... ....
Edit
544/2015 - New Ecopark – a one-stop drop-off facility for recyclable waste (Government of Gibraltar) ...
Public Technologies05 Aug 2015
(Source. Government of Gibraltar) Microsoft Word - 544-2015.docx. PRESS RELEASE. No. 544/2015. Date. 28th July 2015 ... The Ecopark accepts items such as waste electrical and electronic equipment, batteries (all types), bulky items, mattresses, tyres, waste oils, glass, paper and cardboard, mixed packaging recyclables scrap metal, paint, ozone depleting substances, end of life vehicles etc ... Road ... Opening hours.. • Monday - Saturday. 8am - 8pm....
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IFL Science
05 Aug 2015
Editor’s note. Years in the making, the EPA Clean Power Plan will go down as President Obama’s signature policy in regulating carbon emissions from the electricity sector ... A Global Impact ... A Path Toward Cleaner Energy. Robert Percival, the Robert F ... When auto emissions standards were adopted, when ozone-depleting substances were banned, and when lead additives were removed from gasoline, naysayers said it would be impossibly costly ... ....
Edit
PyroGenesis Announces Termination of Development Use and Commercialization Agreement with Customer for PyroGenesis' Patented SPARC(TM) ...
Stockhouse04 Aug 2015
The reason for this decision was based on their common intention to pursue the development of solutions for the destruction of ozone depleting substances independently. The terms of the mutual agreement include, amongst other things, the purchase by PyroGenesis of this customer's exclusive rights in a Pilot System (the "Pilot ......
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Public Technologies
03 Aug 2015
(Source. US Department of Energy) History of Air Conditioning ... 1851. Mechanical refrigeration takes shape. Dr ... patent for it in 1851. 1902 ... 1904 ... However, the chemicals would be linked to ozone depletion decades later and were eventually phased out by governments all across the globe after the Montreal Protocol in the 1990s. Hydrofluorocarbons (HFCs), which don't destroy the ozone, gain popularity but are eventually linked to climate change....
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Huffington Post
31 Jul 2015
You wouldn't even have to be a good shot ... Exponential thinking is still a relatively unknown concept ... Chlorine-based chemicals - CFCs, or chloroflurocarbons - were developed for use in refrigerators and aerosol sprays but in the 1970s scientists discovered CFCs destroyed ozone. Not a good idea given ozone prevents harmful UV rays hitting Earth. In the nick of time we had a ban on ozone-depleting substances ... ....
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