It seems unlikely that current levels of human activity and technology could stop future "ice ages" altogether.
You're probably refering to the long cold periods known as "glacials" which, on average, have lasted about 100,000 years each over the last million years (the length probably varied from about 80, 000 to 120,000 years). In between the glacials are relatively warmer "interglacials" each lasting an average of about 10,000 years. Evidence for the alternating pattern of cold glacials and warm interglacials is found in ice cores and lake bed sediments, among others. There is considerable evidence that the pattern of glacials is very strongly forced by extraplanetary factors that human activity is unlikely to override (unless we can alter aspects of the earth's orbit and spin!)
As to the effect of so-called "global warming", the problem is not easy to solve. The simple fact is that climatologists do not yet have a really good understanding on how global climate works in relation to green house gases, clouds, and oceanic influences, and long term (=more than ten days from now) prediction remains uncomfortably problematic. The ten-day limit is about the practical maximum length of time ahead that the weather can be reasonably accurately predicted, and even that short a time scale has major problems. With our current technology and mathematical models, very long-term climate predictions unfortunately remain the province of witch doctors, prophets, and the Beverly Hillbillies' Granny with her weather beetle.
By the way, the global climate was considerably hotter between 8000 and 5000 years ago (the so-called "Climactic Optimum") than it is today, certainly warmer even than doomsday predictors say it will become due to "global warming". This period is considered by anthropologists and climatologists to be the most climatologically favorable time in human history. Amazingly, despite over 3000 years of very hot global temperatures during the Climactic Optimum, polar ice caps, polar bears, and tundra survived for us to see today. Somehow, I think, it will all make it through the comparatively "cooler" warm period that's predicited (by some) to be approaching.
2006-09-21 11:19:42
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answer #1
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answered by Mr D 2
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Global warming is a natural event, what humans have done is speed it up. if you look back at the history of the earth, the global temperature goes through a cycle of warm then cold and back to warm again. The next ice age will occur, just a whole heck of a lot sooner than it would have had we not been here.
2006-09-21 07:05:43
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answer #2
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answered by ileenie 2
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Global warming is, well, warming our air. Once it gets hot enough, we will loose the polar ice caps. If global warming continues, there is no way we could even have another ice age. It is not speeding us up for one, it's not going to all of a sudden become cold. Naturally, it does get hot and it does get cold. But humans are heating our world up to temperatures higher than it has even known before. Our air is becoming so dense with CO2 that it will eventually kill us if we let it continue to rise. We need to do something NOW or it will ruin us in the end.
We do know all of this, it is right here and it is happening. I suggest looking at http://www.climatecrisis.net/ for more information.
2006-09-21 05:50:13
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answer #3
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answered by Kelly M 4
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i think of it is needed enable human beings to have their very own evaluations yet not in the event that they are risky. as an occasion, in case you supported a various activities team than me, i would not be yelling at you yet whilst, on your opinion, the best undertaking to do whilst utilizing in direction of a brick wall is to step on the gas... properly, i bypass to initiate yelling at you! It in all risk isn't honest purely to "tear you down" and constantly insist which you have faith via fact "scientists are constantly suited"; that could be slightly too very like faith for me. although, besides the fact that if the data isn't solid sufficient so you might have faith in GW, permit me positioned it this style: once you're suited and there is not any GW and you do not attempt to keep means, cut back toxins, and so on then the planet will purely be a sprint smellier and not so effective a place to stay and you have wasted money unnecessarily. on the different hand... once you're incorrect and there is not any GW and you do not attempt to keep means, cut back toxins, and so on then tens of millions (billions?) of individuals ought to die, ninety% of species are wiped out and life as all of us are conscious of it ceases to exist. are you able to make certain why some human beings get emotional?
2016-12-18 14:21:21
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answer #4
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answered by ? 4
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That depends on which camp you apply to. One says yes, the other no. Scientists don't really have a clue.
2006-09-21 06:11:40
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answer #5
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answered by Spirit Walker 5
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prevent it for a while
2006-09-23 05:16:45
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answer #6
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answered by Anonymous
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