This is a question which a lot of people want an answer to. Climate Change is very much how most people prefer to see this issue of Global Warming and the reason is that Climate Change is well documented historically.
The climate of both Greenland and Newfoundland of about a thousand years ago was quite diffferent to that of today. The Vikings, who settled in both locations enjoyed a climate very similar to that of balmy northern [UK] Europe. They called Newfoundland 'Vineland' because grapes grew there. Not today they don't. They also kept herds of cattle and sheep in Greenland. Not possible to do this today since the climate is unsuitable.
One Professor I saw on TV recently spoke of Climate Change in these terms - that while the Northern Hemisphere is warming up, the Southern Hemisphere is cooling down.
It may just be the case that Climate Change is a slow Global seasonal change which happens every thousand years or so. It is far too easy to simply blame the activities of mankind on what's happening with the 'weather'.
Let's just look at the UK and it's weather. UK is subject to the vageries of the Atlantic weather system[s] and almost anything which happens somewhere [anywhere] out there in the Atlantic, will sooner or later hit us and usually quite hard.
As a child I lived on the Sussex coast back in the 1950s - I must tell you that the winter So'Wester storms were of stupendous power with seas often as high as a house smashing across the sea-front driven by the entire might and power of His Majesty, King Atlantic.
Make no mistake, the Island of Britain is subject to serious flooding and was far worse in the past than it is today. I know because I lived through some of those floods. Not as a victim but an observer, just like millions of other Britons.
It is very easy for a 30 something year old to go on TV or the radio or write something in the papers about Climate Change and/or Global Warming. Such people do not impress me because at 66 year of age I have more than 30 years more experience and knowledge of our climate. I must emphasise that the climate of Britain is NOT balmy and nice, it is harsh and cruel, but then people will only know this if they have spent their lives working out of doors and not in a protected environment such as an air conditioned office.
There is much worse to come. We may be heading for a winter of deep freeze not seen since I was a child back in 1946/1947 when hundreds of thousands of Germans froze to death.
That was due to food shortages following WW2 and is unlikely to happen today. Prepare for a Siberian winter, even if it does not happen, be prepared.
2007-10-01 20:40:07
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answer #1
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answered by Anonymous
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I believe it is partial to both the earth and human pollution.
It has been proven that the earth does go through cycles of climate change which are irreversible and completely natural. This theory has scientific and historical evidence to support it as well. In fact, many thought we were going into a second ice age during WWII!
But to rule out completely the effects of human pollution is ridiculous. While the pollution may not be the sole cause, it certainly speeds along the process and can make the climate change more extreme. We forget that throughout the 19th and much of the 20th century there were no limits to the amount of pollution that factories could produce. This, without any doubt, will have an effect on the environment, whether drastic or subtle.
Of course you must remember that most environmental scientists are extremely pessimistic (many estimate we would run out of gasoline by 2000). So there is still hope we can lessen the effects of our pollution and let the earth take its course.
2007-10-01 15:48:27
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answer #2
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answered by willbakerman60 3
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This is a good question, and has been very carefully studied. Climate scientists have considered all of the above-mentioned drivers of climate change. There are, of course, many natural drivers. Among the most important are Milankovich cycles (cause of ice ages) and variations in solar activity. Vulcanism is important only when the activity is about 100 times greater than it is now. The natural drivers have been carefully measured, particularly since the advent of scientific satellites 50 years ago.
Having taken all these things into account, the vast majority of climate scientists will tell you that the recent warming, in the past 50 years, is about 90% caused by humans.
2007-10-01 16:03:34
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answer #3
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answered by cosmo 7
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The Earth has been warming up until about 2003, primarily because of increased solar activity.
http://www.nasa.gov/vision/universe/solarsystem/solar_trend_change_climate.html
But since 2003 the atmosphere and the oceans have been cooling, right along with the sun.
http://www.ssmi.com/rss_research/climate_change_in_the_tropics.html
But humanity is causing surface temperatures to rise, it is a combination of taking the planets temperature in the backwash of thousands of jet airliners throughout the world and the idiotic assumption that turning the great plains of the world into cropland somehow will not effect measuring the earths surface temperature with a thermometer, located on the surface. For greenhouse gases to cause the surface to warm the atmosphere must warm at a faster rate, that is not happening, clearly it is something else.
And since the South pole is growing colder and the north pole is growing warmer there is still some type of energy transfer within the oceans that is occurring that is not fully understood, and growing CO2 emissions from the combustion of fossil fuels cannot explain the observed phenomena.
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2007-10-01 15:50:33
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answer #4
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answered by Tomcat 5
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Your question and the last answer are interesting in that they both hark back to the days of Pagans (I guess he somehow removed his answer). The modern global warming movement seems to be a return of paganism and the belief in a mother nature or a Gaea (not suggesting you meant it that way). Leftists have an innate reaction to free markets, corporations, and industry and are very susceptible to believing than man, especially industrialized man, is responsible for all the bad things that happen in the world. They point to increasing CO2 levels and suggest that CO2 is what causes warming. The evidence points to the high temperatures leading to increasing CO2 concentrations. The amount that humans may be responsible is about a half a degree. Ask youself if you will really notice if it is 31 below zero or just a balmy 30 below. For those that pretend there is a disaster around the corner, apparently that half a degree is pretty scary stuff.
2007-10-01 15:56:08
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answer #5
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answered by JimZ 7
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It's probably a combination. Warming and cooling trends are nothing new in geological time. Volcanic eruptions, solar activity, natural fires, all contribute to climate change. De forestation and burning of fossil fuels all increase the Carbon dioxide in the atmosphere, which also can contribute to accelerated climate change. How much is human influence, how much is nature and can we do anything about it? All up for debate.
2007-10-01 15:48:44
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answer #6
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answered by countrygent07 2
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The energy in the solar system is increasing, yes, we all admit that.
BUT on the other hand, carbon dioxide is not a 'natural' element, and has a huge impact on warming the earth and melting our ice poles. If we were more concerned with healing our planet, and using this energy to make changes than bickering over the causes, we would all be better off.
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2007-10-01 16:49:56
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answer #7
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answered by twowords 6
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Check out the # of active volcanoes currently in the world. Now, calculate the amount of CO2 they are spewing out every single day of the year.
We, human beings, are contributing but a VERY small percentage of the global warming problem. It's plain and simple common sense. But the libs LOVE a cause. Right or wrong.
We are currently on a warming cycle. This happens every so many thousand years. It's recorded in the artic ice records. It will change back again. *shrugs* So no. Global warming is a farce perpetrated upon the people who don't know enough to do some research for the truth.
And the libs are making a buttload of money on the ignorance of those who follow them.
2007-10-01 15:16:26
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answer #8
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answered by Quietman40 5
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Nature is a small factor. It's not all down to us, but mostly it is.
This paper discusses that very question in great detail:
Meehl, G.A., W.M. Washington, C.A. Ammann, J.M. Arblaster, T.M.L. Wigleym and C. Tebaldi (2004). "Combinations of Natural and Anthropogenic Forcings in Twentieth-Century Climate". Journal of Climate 17: 3721-3727
summarized at:
http://www.globalwarmingart.com/wiki/Image:Climate_Change_Attribution.png
2007-10-01 17:27:15
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answer #9
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answered by Bob 7
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Mother nature is responsible for ALL climate changes. The fantasies of the libs feeble minds are MIND BOGGLING!!! Apparently they are descendants of the Salem Witch Hunters, who burned many a woman at the stake for being a 'witch'. The libs have stated that there are about 5 billion too many humans on this Earth. So their agenda is to correct that imbalance. One way is to make life so miserable on Earth for humans, that they will go jump off a cliff somewhere, or stop reproducing.
It is unquestioned in the libs minds that their dear wolves and cockroaches live an enjoyable life because they were here 'first'. If the libs could only bring back the Sabre toothed tigers and T.Rex, they could sleep well at night.
2007-10-01 15:45:18
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answer #10
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answered by Anonymous
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