Hey Nick,
Global warming is cyclical. There are cooling and heating periods of the earth trough time. I’m not saying we can just trash the earth and not worry about it. I believe we are supposed to take care of this planet, but some environmentalists are taking it way too far. I have evidence to back my view that it's not a problem.
The earth’s main source of energy is the sun. The sun shines on the earth, giving the earth energy to warm the planet, but light just bounces off the earth and radiates into space. This cools the planet. If that were the end, the earth would be a freezing wasteland. But there are certain gasses (greenhouse gasses) that trap the light from the sun. The gasses are principally water vapor, methane, and carbon dioxide. Now this is what worries most scientists. Since the industrial revolution, we have been putting a lot more carbon dioxide into the air. Also, the population of the earth is greater than it has ever been, so more people breathe out carbon dioxide. Between these two factors, there is a lot more carbon dioxide in the air than there used to be. As a result, there is a lot more carbon dioxide that can trap a lot more light that would otherwise radiate into space. This causes global warming, right? Well, not exactly. Please keep reading and let me explain why. Studies prove that carbon dioxide amounts produced by human activity, are only 3% of the natural processes on the earth. That is not a significant amount. Also, when humans burn fossil fuels, many other gasses are released besides carbon dioxide. Some of these gasses reflect light instead of absorbing it. This actually cools the planet. So any human produced carbon dioxide is “cancelled out” by the cooling effect of other gasses.
The hole in the ozone layer is thought by some to be linked to global warming. This is not true, as you will hopefully see soon. Ultraviolet light has so much energy that it kills living tissue. Cells that are exposed to it die at a high rate. Ozone is a gas that is made up of three oxygen atoms, forming a filter. It filters ultraviolet light so it does not kill everything on the planet. As you can see, it is a big problem to have a hole where ultraviolet light gets through. So let me tell about the ozone hole.
On October 8, 1993, scientists discovered a “hole” in the ozone layer. It was greatly disturbing, and much research and money was poured into it. The scientists discovered that, under certain conditions, chlorine atoms break down ozone into oxygen. They found these chlorine atoms in the ozone layer above Antarctica. Many sources put chlorine into the atmosphere; one source got a lot of attention: Chlorofluorocarbons, or CFCs. CFCs are incredibly useful in these ways: they are used as medical sterilizers, for refrigeration, and used to efficiently put out fires. Plus they are non-toxic! Well, now they are banned. We can still use them, but cannot make them anymore. Eventually the supplies will run out. You might be asking, how do CFCs get into the ozone layer? Well, in August, a weather phenomenon in Antarctica occurs. It is called the Polar Vortex. Winds steadily blow upwards, and temperatures can reach as low as –130 degrees Fahrenheit. Chlorine containing ice particles get blown up into the ozone layer, and the chlorine can then destroy the ozone layer. By November, the Polar Vortex is gone.
So in the end, the ozone hole is a seasonal phenomenon that happens four months out of the year. Also, how many people live in Antarctica? Hardly any do. So the CFC ban will reduce the depth of the ozone whole (it won’t completely eliminate it because it was there before CFCs were used) for four months were hardly any people live. The ban won’t save lives; it will actually result in death. Think about it. Third world countries will not receive food due to lack of efficient refrigeration. Fires will last longer and be larger without the CFCs to put it out quickly. Infections will increase due to inefficient medical sterilizers. Use the cost/benefit analysis, and you will see that a CFC ban is a bad decision.
I do not believe that the ozone hole is related to global warming because of this: there are two layers in the atmosphere: the homosphere and the heterosphere. In the homosphere, there are (from bottom to top) the troposphere, stratosphere, and mesosphere. In the troposphere, the temperature decreases with increasing altitude. But in the stratosphere, the temperature increases with increasing altitude. Once you get into the mesosphere the temperature decreases with increasing altitude again. Why does the temperature increase with increasing altitude though? It is because that is where the ozone layer is located. As you know, ozone molecules filter the heat, causing them to heat up. This increases the temperature of the ozone layer, and therefore the stratosphere. Now, if there was a decrease in ozone, I would think that there would be less ozone to filter ultraviolet light, and therefore less heat being transferred to the ozone layer. So, as you can see, a decrease in ozone would result in a cooling effect rather than heating. It is absurd to believe that the ozone hole has to do with global warming.
If you have seen charts illustrating the rise in temperature over the last few years, look at the range of temperature change, and don’t be fooled by the drastic change. Some graphs show lines that look like huge changes, but the temperature change is so small it is written in decimal numbers. I would recommend the book How To Lie with Statistics by Darrel Huff.
So to sum it all up, global warming is cyclical, there are warming and cooling periods, but we still need to take care of the earth and not litter and pollute and things like that.
I hope this helps and that you are not confused anymore. Have a great day!
~iluvmycat
2007-03-08 02:31:28
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answer #1
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answered by Anonymous
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Well, global CO2 levels are above any level recorded in antarctic ice in the last few million years.
Global temperatures are rising to levels only seen, well, never seen in the history of humanity, and weather patterns are changing like, well, we've never seen before either.
The average temperature on earth has risen 1.8 degrees C in the last few decades (it doesn't seem like much, but you know the energy required to heat your house...now imagine how much it takes to heat the whole freaking atmosphere...it's a lot).
Ice sheets and glaciers are melting away from places where they're supposed to be, and in mid January, we got snow here in Los Angeles for the first time, well, since I was born in any case.
Some experts say this will eventually lead into a downward climactic spiral ending with an Ice Age. That's just speculation...what we do know for certain is that things are changing, and we don't know where they're going to go from here.
2007-03-05 19:45:42
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answer #2
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answered by cameteoritefinder 2
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The Planet has been altered due to autos emissions,it has gone past the ability to repair itself,(Unless some new Tech is devloped)Which is out of my reality,but could happen.With out this occuring the planet will go down hill,until human life,is no longer possible.The future is not ours to see,but "What is done today,affects the Morrow"no matter what is said by others.The Money people are the cause point & the Planet is the effect point.
The Money people could care less.Thus the "LAW" that which does not gets better gets worse.& so on & so on until it hits bottom.
2007-03-05 18:49:06
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answer #3
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answered by bbnl5 1
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It's the biggest hoax ever pulled on the world since communism. Only difference is that communism really is bad for humanity.
2007-03-05 16:29:49
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answer #4
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answered by Anonymous
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in case you want to obtain grant funds for climate study, do you imagine that you receives a cheque if you're saying," i desire the grant, as i imagine that i visit coach that the figures that the present paradigm is depending upon are incorrect" ? the large environmentalist, David Bellamy, has been silenced, and refused airtime. there continues to be no shown causative link between the quantity of Co2 contained in the ambience, and an boost in global temperatures. The WWWF pictures of the polar bears swimming were taken contained in the Arctic summer season; even as the ice cap in part melts, as they couldn't upward thrust up to photo contained in the wintry climate. The ice became too thick! The East-Anglian uni study figures. "Oh! The figures do not tournament our expectancies. Oh properly. save quiet. because all of us understand that we are suitable." even as the concept, and the religion is more suitable significant than squarely dealing with the valid doubts of truly some non grant-supported scientists, technology has been superceded by technique of religious zealots. As Oliver Cromwell colourfully stated." I pray thee, contained in the bowels of Christ, evaluate that thou mayest be incorrect."
2016-12-05 07:39:04
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answer #5
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answered by ? 4
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Well something is happening cuz I live in Canada and further up north the Arctic the ice is melting and our winters are not as bad as they usually are. So it is hard to say
2007-03-05 16:32:07
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answer #6
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answered by Bullz_ eye 6
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i think it is a reality , but how serious i dont know.
2007-03-05 19:41:05
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answer #7
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answered by Anonymous
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