Answers wanted from "global warming" supporters

Discussion in 'Environment' started by ScreamingEagle, Dec 13, 2009.

  1. ScreamingEagle
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    ScreamingEagle Gold Member

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    1. Is 1 degree of warming in 100 years really a Crisis? Why?

    2. If rising CO2 is the cause of global warming...then why no warming during the last 10 years?

    [​IMG]
     
  2. Old Rocks
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    Old Rocks Diamond Member

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    1. Effects. Glaciers melting, Artic Ice melting. Outgassing of yedoma and permafrost. Outgassing of Arctic Ocean clathrates.

    2. Look at the graph. Notice that there have been many periods when the temperature actualy declined for more than ten years. In fact, in the period of the intense industrialization of Europe, Japan, and North America, the temperature declined due to solar and reflectivity of sulphates put into the atmosphere.

    However, in spite of the intense industrialization of Asia, and the resultant pollution, in spite of a record solar minimum for the last 180 years, and a strong La Nina in 2008, 2009, if you start from 1998, the last ten years have been flat. If you start from 1997, or 1999, there has been a rise.

    So your statement is the result of a cherry picked starting point. The last decade has been the warmest decade on record.

    But rejoice! The next decade will be even warmer.
     
  3. ScreamingEagle
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    ScreamingEagle Gold Member

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    1. why are those so-called effects "bad" or considered a "crisis"?

    2. yes i realize that the earth's temps can vary over time....they have historically done so....but you didn't answer the question except by your own cherry picking......i'd like to know why since CO2 has increased over the past ten years.....why didn't the temperature? The claim has been there is a direct correlation.....
     
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  4. Oddball
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    Oddball BANNED Supporting Member

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    That claim has been debunked for so long and so thoroughly, that only the terminal and willful moonbats cling to it.

    Increased CO2 concentrations follow periods of warming, rather than precede them.
     
  5. Caligirl
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    Caligirl Oh yes it is too!

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    PDO and NAO are likely reasons. Decadal ocean oscillations can explain the cooling circa 1945, circa 1975, and the steady temperatures now. If true, the temp will start rising dramatically again in the coning years. The el nino that has recently formed and is predicted through the spring also predicts a warm year next year.

    Anyway, here is a paper for you. There is a figure in it that shows multidecadal temperature oscillations and these correlate with certain fish species dominating in the oceans, (that's the basis for the name of the article.)

    From anchovies to sardines and back: multidecadal ... [Science. 2003] - PubMed result
     
  6. ScreamingEagle
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    ScreamingEagle Gold Member

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    And these are related to co2 how?
     
  7. Caligirl
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    Caligirl Oh yes it is too!

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    Many factors affect climate. Were you under the impression that there is a group of people that think all of climate is down to CO2? There is no such group. The CO2 people simply think that CO2 is one factor that affects climate, and one that causes warming.

    Anyway, I misunderstood, I though you genuinely wanted to know why there are variations within the general trend of a warming planet. Some of these variations within the general trend are due to factors other than CO2, such as ocean oscillations. Sun spot activity and volcanic activity and particulate output and so on - these things all affect climate. Ocean oscillations affect climate. CO2 affects climate. We have control ofer some of these things, and are directly responsible for some of these things, and not others. The only things we could hope to chaneg are the things we have some control over, like CO2 emissions.
     
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  8. uscitizen
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    uscitizen Senior Member

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    You got me, I am not a scientist. R U? I do however tend to listen to those smarter and more educated than myself. That is why I don't pay much mind to right wingnutz.
     
  9. ScreamingEagle
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    ScreamingEagle Gold Member

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    That makes sense....that many factors affect climate.

    So why is it "global warmers" point to man-made CO2 emissions as the big bad reason for global warming?
     
  10. Caligirl
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    Caligirl Oh yes it is too!

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    It's one thing we can change, unlike milankovich cycles or sunspot activity or etc.

    They also sometimes point to deforestation and land use (erosion, loss of soil fertility, desertification, albedo, all remove carbon sinks and could contribute to warming), as other things that might be involved and that we can change.

    I don't personally think that the CO2 thing is a conspiracy but I guess it is technically possible, if that is where you're going with this.
     

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