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mike f asked in EnvironmentGlobal Warming · 1 decade ago

Will there ever be another ice age again?

I'm very confused, if man can effect massive climate mechanisms can we negate another ice age? if not, what does all this mean, do we really have as much understanding of this as we pretend? In the 70s I remember man made global cooling, forwarded by the likes of Carl Sagan, what happened to that, he said we would die on a frozen planet by the year 2000 if we didn't change our carbon emissions, and what happened to the crisis of ozone depletion? It's worn me out.

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  • andy
    Lv 7
    1 decade ago
    Favorite Answer

    Nope, all it takes is to look at how man over the millennia have tried to control our planet. In the United States and other places we build walls to prevent flooding and then build in the 1 to 5 year flood plain then wonder why these homes get flooded. We build homes 20 feet below the water table and have pumps to keep the city from going under water but this city still gets major flooding.

    I could go on about the failed attempts at humans to majorly effect nature around them. A few years ago I read an article that stated that we only know about half of the interactions of the climate systems yet the climate scientists focusing on the smallest part of it thinks that the tail wags the dog.

  • Anonymous
    1 decade ago

    If we were to prevent an ice age by adding CO2 to the atmosphere, we would need to maintain CO2 levels for 100 thousand years. Even though I expect to live a very long time, 100 thousand years would be too much of a stretch for me.

    Don't worry about another ice age. They take many thousands of years to have a big effect on the Earth

    Jeff

    You get thumbs down because denialists hate the truth..

  • 1 decade ago

    Yes there will be another ice age but not in the average human life span. The cycle is measured in centuries.

  • 7 years ago

    its over and the world with never get that far. basically the new world will begin before another ice age can happen. the world with the ice age will end before it can happen.

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  • 1 decade ago

    I don't believe Carl Sagan ever predicted globlal cooling. I believe you are confusing his descriptions of nuclear winter, which is an entirely different phenomenum.

    There were some scientists warn ing of global cooling, most notable Dr. Reid Branson. The global catastropphic cooling predictions were never fully embraced by scientists the way that global warming is now. Many scientists, including Sagan, were warning even then about warming even as the earth was cooling.

    Reid Branson identified the increase of aerosols in the 1970s as the primary cause of cooling -- not carbon. According to that theory, aerosols and other particulate polution were causing global dimming, litterally shading the earth. Branson and the others may have been correct, as the global cooling went away after worldwide reductions in polution and aerosols. However, other scientists propose that changes in the sun's activity was responsible for the cooling in the 70s. (I don't know what "most" climate scientists believe on this.) However, whichever might have been true, it has nothing to do with now. Now we are warming, and any possible correlation between the sun and warming ended in the 70s as warming accelerated with a possible slight decrease in solar activity.

    So, you got a couple things confused. Sagan's cooling was due to nuclear war, the champion of global cooling was Reid Bryson, and the cause according to Bryson was not CO2 -- in fact Sagan and most other were pointing at CO2 as a cause of future warming. If you look at what scientists have really said, it seems that they have been largely right. There is still much more about the climate to learn, but is very clear at this point that man has changed the chemical composition of the atmosphere enough to enhance the greenhouse effect just as has been long predicted.

    Naturally, an ice age is due in about 22,000 years because of cycles of the earth's tilt an orbit. It is impossible to predict what will actually be going on that far in the future.

  • Anonymous
    1 decade ago

    Ozone is still depleting, with UV-B arriving at Earth's surface at ever higher levels, and has been since the start of the Industrial Revolution. This year's ozone hole was bigger than last year's, but not as big as the record.

  • Anonymous
    1 decade ago

    Will there ever be another ice age again?

    yes, probably, but not for at least 1/2 million years now due to our emissions, according to the palaoclimatologist david archer;

    http://books.google.co.uk/books?id=kV_Q-0lJKvIC&pr...

    i find his projection convincing.

  • Jeff M
    Lv 7
    1 decade ago

    of course he did

    http://blather.net/globaleyes/archives/2007/04/car...

    I linked to a video of an interview by Carl Sagan talking about global warming, climate change and nuclear winter explaining to us exactly what he thinks of the matter and someone gave me a thumbs down? What do you think the Carl Sagan in that video is fake?

  • Anonymous
    1 decade ago

    Yes, just not on the schedule set by alarmists.

  • 1 decade ago

    personally, I do not think there will be as the world will end before it can happen

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