http://goanimate.com/go/movie/088Vhqo6gSZc?uid=0e22JBkRWDx0&utm%5Fsource=gigyaembed
Like it? Create your own at GoAnimate.com. It's free and fun!
miércoles, 25 de febrero de 2009
GoAnimate.com: A BORING CLASS #2
GoAnimate.com: A BORING CLASS #2
http://goanimate.com/go/movie/088Vhqo6gSZc?uid=0e22JBkRWDx0&utm%5Fsource=gigyaembed
Like it? Create your own at GoAnimate.com. It's free and fun!
http://goanimate.com/go/movie/088Vhqo6gSZc?uid=0e22JBkRWDx0&utm%5Fsource=gigyaembed
Like it? Create your own at GoAnimate.com. It's free and fun!
lunes, 23 de febrero de 2009
jueves, 12 de febrero de 2009
What Is Ozone Layer Destruction 2
A ver si ahora si quedo bien.........
What Is Ozone Layer Destruction 2
View more presentations from Vash Estampida.
domingo, 8 de febrero de 2009
Enviromental Vocabulary
1. acid rain
Acid rain is rain or any other form of precipitation that is unusually acidic.
2. carbon dioxide
Carbon dioxide is used by plants during photosynthesis.
3. chemicals
The photosyntesis is a natural chemical process in the plants.
4. climate change
The result of the global warming is the climate change in many regions.
5. conservation
Greenpeace is a conservation movement in pro of wales.
6. contaminant
Carbon Monoxide is a dangerous contaminant..
7. contamination
Soil contamination is caused by the presence of man-made chemicals or other alteration in the natural soil environment.
8. deforestation
The consequenses of deforestation si the extintion of many species of animals.
9. drought
Sonora suffering from drought conditions.
10.eco−friendly
Changes in air quality call for Eco-Friendly home improvements.
11. ecological
Yellowstone is an ecological reservation.
12. ecologist
I use to be an ecologist idealist when I was young.
13. ecosystem
Ecosystem services are “fundamental life-support services upon which human civilization depends,”i and can be direct or indirect.
14. effluent
Effluent in the man-made sense is generally considered to be water pollution
15. endangered species
The gorillas are an endangered species.
16. environment
To save the planet we need take care our enviroment.
17. environmental
The certification ISO 9002 are a group of enviromental laws to make the industries friendly with the environment.
18. environmentalist
Many enviromentalist are figthing to sabe the planet.
19. environmentally friendly
Recycling is the first thing that comes to mind when we think of being environmentally friendly.
20. extinction
The blue wales are an species in danger of extinction.
21. global warming
The global warming provocate that the climate had changed.
22. greenhouse effect
The green house effect provocate the warming in the poles.
23. noise pollution
The cars and the strong noises are part of the noise pollution.
24. nuclear radiation
The nuclear radiation provocate mutations in the life.
25. organic
We must separate the garbage in organic and inorganic groups.
26. ozone
The hole in the ozone layer is growing up.
27. ozone layer
The ozone layer is currently being destroyed by CFCs and other substances.
28. ozone−friendly
We must use ozone-friendly products to protect the ozono layer.
29. pollution
The wáter pollution it’s the most important problema of all.
30. radioactive substance
Many radioactive substances are being mixed into the wáter.
31. radioactive waste
The laws forbidden drop the radioactive waste in any place.
32. radioactivity
The radioactivity is founded before the atomic explosion.
33. recyclable
All the plastic, glass and paper are recyclable.
34. recycled
In the school we had recycled the trash since last course.
35. recycling
Jhon si in the garden recycling the old plastic bottles.
36. reforestation
The reforestation is very importan to save our ecosystem.
37. sewage
Sewage is the mainly liquid waste containing some solids produced by humans.
38. sewage farm (GB)
Sewage Farm is the place were the wáter is procesed to clean.
39. sewage plant (US)
The new Sewage plant start to operate today.
40. sewage works (GB)
In home we can do small sewage Works.
41. smog
The smos poduced by the trucks an cars is very dangerous to the youngest and older people.
42. solar energy
The solar energy can be capted with solar panels.
43. sulfur dioxide (US)
The sulfur dioxide polluter the air when the freeze gas in the fridges is not correctly treatteament.
44. sulphur dioxide (GB)
The ozone layer can be destroyed by the sulphur dioxide in the fridges.
45. to become extinct
Polar bears 'could become extinct' because of melting ice.
46. to conserve
To conserve the enviroment we need recyclin all our wastes.
47. to contaminate
The plan would allow traces of untested products to contaminate food claiming to be GM-free
48. to die out
Some scientists say that the dinosaurs died out when a comet hit the earth and caused a nuclear winter.
49. to poison
We need some food to poison the rat.
50. to pollute
To pollute the wáter we only need one old battery.
51. to recycle
To recycle the waste we need know the diference between organic and inorganic wastes.
52. toxic waste
The toxic waste is produce mainly in the industries.
54. waste disposal
We don’t have enough waste disposals to cover the citizen’s necessities.
Acid rain is rain or any other form of precipitation that is unusually acidic.
2. carbon dioxide
Carbon dioxide is used by plants during photosynthesis.
3. chemicals
The photosyntesis is a natural chemical process in the plants.
4. climate change
The result of the global warming is the climate change in many regions.
5. conservation
Greenpeace is a conservation movement in pro of wales.
6. contaminant
Carbon Monoxide is a dangerous contaminant..
7. contamination
Soil contamination is caused by the presence of man-made chemicals or other alteration in the natural soil environment.
8. deforestation
The consequenses of deforestation si the extintion of many species of animals.
9. drought
Sonora suffering from drought conditions.
10.eco−friendly
Changes in air quality call for Eco-Friendly home improvements.
11. ecological
Yellowstone is an ecological reservation.
12. ecologist
I use to be an ecologist idealist when I was young.
13. ecosystem
Ecosystem services are “fundamental life-support services upon which human civilization depends,”i and can be direct or indirect.
14. effluent
Effluent in the man-made sense is generally considered to be water pollution
15. endangered species
The gorillas are an endangered species.
16. environment
To save the planet we need take care our enviroment.
17. environmental
The certification ISO 9002 are a group of enviromental laws to make the industries friendly with the environment.
18. environmentalist
Many enviromentalist are figthing to sabe the planet.
19. environmentally friendly
Recycling is the first thing that comes to mind when we think of being environmentally friendly.
20. extinction
The blue wales are an species in danger of extinction.
21. global warming
The global warming provocate that the climate had changed.
22. greenhouse effect
The green house effect provocate the warming in the poles.
23. noise pollution
The cars and the strong noises are part of the noise pollution.
24. nuclear radiation
The nuclear radiation provocate mutations in the life.
25. organic
We must separate the garbage in organic and inorganic groups.
26. ozone
The hole in the ozone layer is growing up.
27. ozone layer
The ozone layer is currently being destroyed by CFCs and other substances.
28. ozone−friendly
We must use ozone-friendly products to protect the ozono layer.
29. pollution
The wáter pollution it’s the most important problema of all.
30. radioactive substance
Many radioactive substances are being mixed into the wáter.
31. radioactive waste
The laws forbidden drop the radioactive waste in any place.
32. radioactivity
The radioactivity is founded before the atomic explosion.
33. recyclable
All the plastic, glass and paper are recyclable.
34. recycled
In the school we had recycled the trash since last course.
35. recycling
Jhon si in the garden recycling the old plastic bottles.
36. reforestation
The reforestation is very importan to save our ecosystem.
37. sewage
Sewage is the mainly liquid waste containing some solids produced by humans.
38. sewage farm (GB)
Sewage Farm is the place were the wáter is procesed to clean.
39. sewage plant (US)
The new Sewage plant start to operate today.
40. sewage works (GB)
In home we can do small sewage Works.
41. smog
The smos poduced by the trucks an cars is very dangerous to the youngest and older people.
42. solar energy
The solar energy can be capted with solar panels.
43. sulfur dioxide (US)
The sulfur dioxide polluter the air when the freeze gas in the fridges is not correctly treatteament.
44. sulphur dioxide (GB)
The ozone layer can be destroyed by the sulphur dioxide in the fridges.
45. to become extinct
Polar bears 'could become extinct' because of melting ice.
46. to conserve
To conserve the enviroment we need recyclin all our wastes.
47. to contaminate
The plan would allow traces of untested products to contaminate food claiming to be GM-free
48. to die out
Some scientists say that the dinosaurs died out when a comet hit the earth and caused a nuclear winter.
49. to poison
We need some food to poison the rat.
50. to pollute
To pollute the wáter we only need one old battery.
51. to recycle
To recycle the waste we need know the diference between organic and inorganic wastes.
52. toxic waste
The toxic waste is produce mainly in the industries.
54. waste disposal
We don’t have enough waste disposals to cover the citizen’s necessities.
sábado, 7 de febrero de 2009
What is ozone layer destruction?
The ozone layer, situated in the stratosphere about 15 to 30 km above the earth's surface, plays the important role of "space suit" that protects us living beings by absorbing harmful ultraviolet radiation (UVB) from the sun.
The ozone layer is currently being destroyed by CFCs and other substances, its depletion progressing globally except in the tropical zone.
The ozone layer is disappearing at a particularly high rate in high-latitude areas.In the Antarctic Circle, a large ozone hole has been observed for eight consecutive years from 1989 through 1996.NB: m atm-cm, milli-atmosphere centimeter indicates total ozone amount, i.e., the amount of ozone contained in a vertical air column in the atmosphere; 300 atm-cm has a thickness of 3 mm when ozone in the air column is entirely compressed at 0 and 1 atmospheric pressure.
Annual Change in Three Ozone Hole Factors(Meteorological Agency: Ozone Layer Observation Report, 1996)
Impact of ozone layer destruction
Destruction of the ozone layer increases the amount of harmful ultraviolet radiation (UVB), which in turn can result in increased cases of skin cancer, and visual impediments such as cataract. It can also hinder the growth of plants and negatively impact small living organisms, such as zooplankton, phytoplankton, shrimp larvae and the young of fish.
What is CFC?
CFC, chlorofluorocarbon, is the collective name for compounds made of carbon, fluorine, chlorine and hydrogen. Because of their stable, harmless and non-combustible properties, they are widely used in everyday applications such as cleansing agents for electronic components, coolants for air conditioners, foaming agents for the manufacture of insulating materials and so on. CFC variations include HCFC and HFC.
CFC (Chlorofluorocarbon)Because of CFC's strong ozone layer-destroying effect, its production was totally banned at the end of 1995.It is necessary to ensure proper handling of CFC in appliances currently in use.
HCFC (Hydrochlorofluorocarbon)Although less powerful than CFC in destroying the ozone layer, HCFC must be also contained.
Mechanism of ozone layer destruction by CFCs
Since CFCs are chemically stable, when released into the atmosphere they pass through the troposphere at about 20 km altitude without decomposing, reaching the stratosphere, where they are chemically decomposed by short-wavelength ultraviolet rays, releasing chlorine atoms. In a chain reaction, the chlorine atoms destroy the ozone layer in the stratosphere.
Mechanism of Ozone Layer Destruction by CFC in Stratosphere
Prediction of future ozone layer destruction
The 1994 general report of the scientific, environmental impact and technological economic assessment panel of the UNEP predicted that the amount of chlorine and bromine would peak in 1994 in the troposphere, while in the stratosphere it would reach peak 3 - 5 years later and begin to decrease, provided that all the signatory countries observe the revised Montreal Protocol of 1992.From this, it is predicted that the global ozone decrease will continue during the remaining years of the 20th century, but that if other factors remain unchanged, the ozone layer will begin to be restored in the early 21st century and the Antarctic ozone hole will disappear around the year 2045.
FINDING SOLUTIONS
Despite the fact that, on the data known in the 1970s, the US Government banned the use of aerosols in 1978, it was not until 1987 that an international treaty, called the Montreal Convention, limiting the production of CFCs was signed by all the major industrial nations. The main users of CFCs agreed to reduce their consumption by 50% before the end of the century. However, experts said this reduction was insufficient and have suggested that a cut of 85% is needed if the ozone layer is to stand a chance of returning to normal within the next 50 years. That is how long it will take for harmful chemicals already in the atmosphere to work their way through.
Realising that the ozone layer was more badly damaged than previously thought, 82 countries and the European Community met in Helsinki in May 1989. They decided to phase out the production of all CFCs before the end of the century and to halt the use of other damaging chemicals as soon as possible. An added spur for phasing out CFCs is that they are also very potent greenhouse gases, some thousands of times more effective than carbon dioxide. (Greenhouse gases absorb heat radiated from the surface of the Earth, keeping it about 40° C warmer than it would be otherwise. Because of extra greenhouse gases in the atmosphere the world is gradually becoming warmer leading to changes in the climate and a rise in sea level). Such swift action on an environmental issue is unprecedented. From the realisation in 1985 that there was a problem, the causes have been identified and some solutions found. By the end of the century the ozone layer should be starting to recover.
PERSONAL RESPONSIBILITY
While CFCs and other chemicals are being phased out we can all help reduce the damage to the ozone layer.
Buy only CFC-free aerosols
Carry out a survey of your home or the school's use of CFC products
If your family is buying a refrigerator choose one which is more ozone friendly and which can be serviced without any coolant gas being released into the air. Most manufacturers supply the information needed to make a wise choice. Also try to make sure that there are arrangements for the coolant gases to be removed from the old refrigerator before it is broken up.
http://www.epa.gov/Ozone/science/sc_fact.html
http://www.sciencedaily.com/releases/2003/07/030730080139.htm
http://en.wikipedia.org/wiki/Ozone_depletion
The ozone layer is currently being destroyed by CFCs and other substances, its depletion progressing globally except in the tropical zone.
The ozone layer is disappearing at a particularly high rate in high-latitude areas.In the Antarctic Circle, a large ozone hole has been observed for eight consecutive years from 1989 through 1996.NB: m atm-cm, milli-atmosphere centimeter indicates total ozone amount, i.e., the amount of ozone contained in a vertical air column in the atmosphere; 300 atm-cm has a thickness of 3 mm when ozone in the air column is entirely compressed at 0 and 1 atmospheric pressure.
Annual Change in Three Ozone Hole Factors(Meteorological Agency: Ozone Layer Observation Report, 1996)
Impact of ozone layer destruction
Destruction of the ozone layer increases the amount of harmful ultraviolet radiation (UVB), which in turn can result in increased cases of skin cancer, and visual impediments such as cataract. It can also hinder the growth of plants and negatively impact small living organisms, such as zooplankton, phytoplankton, shrimp larvae and the young of fish.
What is CFC?
CFC, chlorofluorocarbon, is the collective name for compounds made of carbon, fluorine, chlorine and hydrogen. Because of their stable, harmless and non-combustible properties, they are widely used in everyday applications such as cleansing agents for electronic components, coolants for air conditioners, foaming agents for the manufacture of insulating materials and so on. CFC variations include HCFC and HFC.
CFC (Chlorofluorocarbon)Because of CFC's strong ozone layer-destroying effect, its production was totally banned at the end of 1995.It is necessary to ensure proper handling of CFC in appliances currently in use.
HCFC (Hydrochlorofluorocarbon)Although less powerful than CFC in destroying the ozone layer, HCFC must be also contained.
Mechanism of ozone layer destruction by CFCs
Since CFCs are chemically stable, when released into the atmosphere they pass through the troposphere at about 20 km altitude without decomposing, reaching the stratosphere, where they are chemically decomposed by short-wavelength ultraviolet rays, releasing chlorine atoms. In a chain reaction, the chlorine atoms destroy the ozone layer in the stratosphere.
Mechanism of Ozone Layer Destruction by CFC in Stratosphere
Prediction of future ozone layer destruction
The 1994 general report of the scientific, environmental impact and technological economic assessment panel of the UNEP predicted that the amount of chlorine and bromine would peak in 1994 in the troposphere, while in the stratosphere it would reach peak 3 - 5 years later and begin to decrease, provided that all the signatory countries observe the revised Montreal Protocol of 1992.From this, it is predicted that the global ozone decrease will continue during the remaining years of the 20th century, but that if other factors remain unchanged, the ozone layer will begin to be restored in the early 21st century and the Antarctic ozone hole will disappear around the year 2045.
FINDING SOLUTIONS
Despite the fact that, on the data known in the 1970s, the US Government banned the use of aerosols in 1978, it was not until 1987 that an international treaty, called the Montreal Convention, limiting the production of CFCs was signed by all the major industrial nations. The main users of CFCs agreed to reduce their consumption by 50% before the end of the century. However, experts said this reduction was insufficient and have suggested that a cut of 85% is needed if the ozone layer is to stand a chance of returning to normal within the next 50 years. That is how long it will take for harmful chemicals already in the atmosphere to work their way through.
Realising that the ozone layer was more badly damaged than previously thought, 82 countries and the European Community met in Helsinki in May 1989. They decided to phase out the production of all CFCs before the end of the century and to halt the use of other damaging chemicals as soon as possible. An added spur for phasing out CFCs is that they are also very potent greenhouse gases, some thousands of times more effective than carbon dioxide. (Greenhouse gases absorb heat radiated from the surface of the Earth, keeping it about 40° C warmer than it would be otherwise. Because of extra greenhouse gases in the atmosphere the world is gradually becoming warmer leading to changes in the climate and a rise in sea level). Such swift action on an environmental issue is unprecedented. From the realisation in 1985 that there was a problem, the causes have been identified and some solutions found. By the end of the century the ozone layer should be starting to recover.
PERSONAL RESPONSIBILITY
While CFCs and other chemicals are being phased out we can all help reduce the damage to the ozone layer.
Buy only CFC-free aerosols
Carry out a survey of your home or the school's use of CFC products
If your family is buying a refrigerator choose one which is more ozone friendly and which can be serviced without any coolant gas being released into the air. Most manufacturers supply the information needed to make a wise choice. Also try to make sure that there are arrangements for the coolant gases to be removed from the old refrigerator before it is broken up.
http://www.epa.gov/Ozone/science/sc_fact.html
http://www.sciencedaily.com/releases/2003/07/030730080139.htm
http://en.wikipedia.org/wiki/Ozone_depletion
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