Increases in CO2 - Causes Cooling

Discussion in 'Politics' started by jem, Jul 12, 2014.

  1. Ricter

    Ricter

    That chart is for average temperature change, is it not? And most years, going by the mean, the change is positive. That mean change is significant over such a such a short period of time.
     
    #771     Sep 16, 2014
  2. jem

    jem

    technically this anomoly chart shows the change from the average temp for that year.
    this chart presents as an anomoly chart with a least squares regression line.

    I am therefore not sure how you are calculating the mean or the change for the mean... but we do see the trend as determined by the least squares technique to be not warming.



    [​IMG]



     
    #772     Sep 16, 2014
  3. Yes, "up to" in certain areas, "including" which means those practices may be of tiny percentages.

    Are you starting to understand what a moron and liar you are now?


     
    #773     Sep 16, 2014
  4. Lucrum

    Lucrum

    Denial, it's not just a river.
     
    #774     Sep 16, 2014

  5. Stupidity and incomprehension runs deep in you. As far as we know this happened 0.0000000001% of the time. Good enough for you just say that a third of scientists lie. Because you are a moron.
     
    #775     Sep 16, 2014
  6. Lucrum

    Lucrum

    Yeah that's almost as much as 34%

    LOL
     
    #776     Sep 16, 2014
  7. [​IMG]
     
    #777     Sep 16, 2014
  8. The first thing anyone who wishes to do a literature review needs to do is to decide what question they wish to answer. Many people seem to assume that my question was, “What percentage of scientists accept anthropogenic global warming [AGW]?” But that was not my question. Rather it was, “What fraction of peer-reviewed scientific papers reject AGW and what evidence do they present?” In other words, is there a scientific case against anthropogenic global warming? To answer that question, I needed to find peer-reviewed papers about global warming and review them sufficiently to judge whether they rejected anthropogenic global warming, or offered another alternative. One could go to the library and start reading articles, but that way would take a lifetime. Instead, I turned to the online Web of Science, a compendium of the peer-reviewed literature in all subjects. The WoS allows you to search articles by title, topic, author, date, journal, etc. in any combination.

    Original Search

    To find articles about global warming, one naturally uses the search term “global warming.” Some articles might be under the topic “global climate change,” so I also used that as a search term. This search produced 13,950 articles for the period 1991 through mid-November 2012. This number does not capture every article on global warming, nor every article that rejects AGW, since some might be under other keywords. What it does capture is the number and proportion of articles with topics “global warming” or “global climate change” that reject AGW as I define reject. It turns out to be a very small number and a very small proportion.

    [Note: most recently, as explained on the home page, I searched for articles from 2013 with keywords "climate change." See 2013 Update II below.]

    Procedures

    Search the Web of Science [university access required] as follows:

    Step 1
    Search with:
    Topic = "global climate change" (quotation marks essential)
    Publication Year=1991
    Document Type=Article
    Enhanced Science Index only

    On November 10, 2012 this gave 40 results.

    Step 2
    Repeat this search but substitute Topic="global warming". This gives 131 results.

    But some articles will have used both "global warming" and "global climate change" and these must be subtracted otherwise they are counted twice.

    Step 3
    Search with Topic="global warming" AND Topic=" global climate change" in the second field. Use Publication Year=1991 and add a field for Articles or refine the search for articles only. This gives 11 results.

    Therefore the total number of unique records for 1991 is 40 + 131 - 11 = 160

    Repeat for each year. Or, an easier way is to do three searches for the entire period, 1991-2012, then combine the searches using the OR operator to remove the double counting. Still another way would be to export the records to Excel, then use Excel to identify and remove duplicates.

    Read some combination of titles, abstracts, and entire papers as necessary to judge whether a paper rejects human-caused global warming or professes to have a better explanation of observations.

    The Web of Science also lists the number of times each article has been cited, and much more. At the bottom of the search page, you can export the results to an Excel file.

    Note that some papers that one might expect to find listed were classified as "Review" or "Editorial Material" by WoS. I did not count those.
     
    #778     Sep 16, 2014
  9. Lucrum

    Lucrum



    A thoroughly debunked meme
     
    #779     Sep 16, 2014
  10. jem

    jem

    and .03 percent stated man made co2 causes global warming.
    and I read some of them... and they were speculating based on now failed models.




     
    #780     Sep 16, 2014