[b said:Quote[/b] ]We are responsible to be good stewards of the planet God has given us
http://www.fortunecity.com/greenfield/maple/784/ozone.htm[b said:Quote[/b] ]While it is true that volcanoes and oceans release large amounts of chlorine, the chlorine from these sources dissolves in water so it washes out of the lower atmosphere in the rain. CFCs do not dissolve in water and are not broken down in the lower atmosphere. Human-made molecules reach the stratosphere and then release chlorine and bromin. CFCs are very stable chemicals that do not break down in the lower atmosphere. When released, they drift up into the stratosphere where they are broken down by ultraviolet radiation. This again releases the chlorine that destroys ozone. A single atom of chlorine can destroy 100,000 or more molecules of ozone.Measurements show that the increase in stratospheric chlorine since 1985 matches the amount of CFCs and other ozone- depleting substances released by human activities.
CFC's:[b said:Quote[/b] ]Scientists have determined that chlorine molecules released from the decomposition of chlorofluorocarbons are primarily responsible for ozone destruction in the stratosphere.
[b said:Quote[/b] ]Artificially created gas.
Enhances the Earth's greenhouse effect, and creates ozone depletion in the stratosphere.
Very strong greenhouse gas.
Residence time 60-100 years.
.....Surface ozone is produced as an artificial by-product of photochemical smog, and is hazardous to human health.
http://royal.okanagan.bc.ca/mpidwir....te.html[b said:Quote[/b] ]N20 - nitrous oxide
Natural component of the Earth's atmosphere.
Important in the greenhouse effect and causes nitrogen loading.
Human inputs 6 million tons per year, and 19 million tons per year by nature.
Residence time in the atmosphere about 170 years.
1700 (285 parts per billion), 1990 (310 parts per billion), 2030 (340 parts per billion).
Comes from nitrogen based fertilizers, deforestation, and biomass burning.
you can't do that in many places... because of humans![b said:Quote[/b] ]Go outside for five minutes and breath the clean air
I compltely disagree.[b said:Quote[/b] (Spectabilis73 @ Oct. 13 2004,2:00)]The size of the ozone hole was never a big deal... the ozone hole will never completely close, nor will it completely... uhm.... open But last years hole didnt have much of an impact on the environment. The ozone hole is nothing to worry about right now.
and when you ADD oxygen-depleting chemicals AND kill photosynthetic organisms, you have things taking out O3 WHILE other thigns are preventing the formation of O3!!![b said:Quote[/b] ]
In the stratosphere, ozone is created primarily by ultraviolet radiation. When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen. A freed oxygen atom then combines with another oxygen molecule to form a molecule of ozone. There is so much oxygen in our atmosphere, that these high-energy ultraviolet rays are completely absorbed in the stratosphere.
BIG picture!!![b said:Quote[/b] ]Over the Earth's lifetime, natural processes have regulated the balance of ozone in the stratosphere. A simple way to understand the ozone balance is to think of a leaky bucket. As long as water is poured into the bucket at the same rate that water is leaking out, the amount or level of water in the bucket will remain the same. Likewise, as long as ozone is being created at the same rate that it is being destroyed, the total amount of ozone will remain the same.
[b said:Quote[/b] ]Starting in the early 1970's, however, scientists found evidence that human activities were disrupting the ozone balance. Human production of chlorine-containing chemicals such as chlorofluorocarbons (CFCs) has added an additional factor that destroys ozone. CFCs are compounds made up of chlorine, fluorine and carbon bound together. Because they are extremely stable molecules, CFCs do not react easily with other chemicals in the lower atmosphere. One of the few forces that can break up CFC molecules is ultraviolet radiation. In the lower atmosphere, CFCs are protected from ultraviolet radiation by the ozone layer itself. CFC molecules thus are able to migrate intact up into the stratosphere. Although the CFC molecules are heavier than air, the air currents and mixing processes of the atmosphere carry them into the stratosphere.
[b said:Quote[/b] ]has anyone of you heard of a good scientific paper containing:
Quote
We are responsible to be good stewards of the planet God has given us
what kind of sientist publishes that?
is the textbook a religious one? or do you go to a religious school?
sure, I've seen scientific textbooks talking about religion, but not HAVING one.
very true! even right now, polar bears and other animals are having that problem![b said:Quote[/b] ]It also means destruction of habitats for animals int he arctis region such as penguins.
I suggest you read it... we've already adressed what you have to say.[b said:Quote[/b] ]and truthfully I heven't read the topic.
http://www.greennature.com/article1091.html[b said:Quote[/b] ]Second, researchers have measured nearly all known gases containing chlorine in the stratosphere. They have found that the emissions of the human-produced halocarbons, plus the much smaller contribution from natural sources, could account for all of the stratospheric chlorine. Third, the increase in total stratospheric chlorine measured between 1980 and 1998 corresponds to the known increases in concentrations of human-produced halocarbons during that time
uhhhh! Polar bears live in the northern latitudes![b said:Quote[/b] (TheAlphaWolf @ Oct. 14 2004,8:27)]very true! even right now, polar bears and other animals are having that problem![b said:Quote[/b] ]It also means destruction of habitats for animals int he arctis region such as penguins.
and photosynthetic plankton LOVES cool temperatures. There are HUGE algal blooms near artantica which brings in krill which in turn is eaten by whales. if it's hotter, there won't be as much photosynthetic plankton which MAKES oxygen and is food for many many many things.
Dino you don't even know what UV rays are, they don't cause heat... even thealphawolf has to agree with me on THAT![b said:Quote[/b] ] compltely disagree.
An ozone hole means that the powerful ultraviolet rays to get through.
The result:
Antarctica is slowly compltely melting away.
Many more chunks of ice are breaking off and as these too melt, the worlds oceans are slowly rising.
It also means destruction of habitats for animals int he arctis region such as penguins.
[b said:Quote[/b] ]people ignore facts that are inconvenient to them & believe ideas that are convenient to them.