File:97% of Climate Scientists Confirm Anthroprogenic Global Warming.svg
Original file (SVG file, nominally 3,010 × 2,420 pixels, file size: 7 KB)
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Summary[edit]
| Description |
English: Graphic representation of 97–98%
The figure is based on Doran 2009 and Anderegg 2010 studies. Doran & Zimmerman 2009 study: http://tigger.uic.edu/~pdoran/012009_Doran_final.pdf Anderegg et al. 2010 study: http://www.pnas.org/content/early/2010/06/04/1003187107.full.pdf en:Proceedings of the National Academy of Sciences of the United States of America http://www.pnas.org/content/suppl/2010/06/07/1003187107.DCSupplemental/pnas.201003187SI.pdf The first study (Doran & Zimmerman 2009) is a survey with 2 questions. In the first question, 96.4% of "climatologists who are active publishers on climate change" agree that mean global temperatures have risen "compared with pre-1800s levels" (compared with before the 1550-1850 A.D. Little Ice Age ended). In the second question, 97.4% (75 of 77) agree that human activity "is a significant contributing factor" in temperature change. The study concludes the distribution of answers to its survey questions implies that debate on the "role played by human activity is largely nonexistent" amongst climate experts. According to the second study (Anderegg et al. 2010), there are only 2% to 3% UE ("unconvinced by the evidence") disagreeing scientists amongst a group of 50 to 200 climate researchers ranked as top. Expertise was defined as determined by the number of articles published by climate journals. The top 50 scientists considered CE ("convinced by the evidence") wrote an average of 408 articles each which were successfully published. Scientists were counted as UE if having signed a public "statement strongly dissenting from the views of the IPCC." That resulted in a list of 472 UE scientists, of whom 1 was in the top 50 ("2% of the top 50 climate researchers") as defined by the publication-number ranking system. Scientists were counted as CE ("convinced by the evidence") when in the list of those credited by the IPCC as having done research utilized by AR4 Working Group I. That resulted in a list of 619 names, which, after adjusting for duplication, became a total of 903 when also adding in those who signed one of several statements supporting the IPCC. |
| Date | |
| Source | Own work. Original source: "Skeptical Science" blog, 11 May 2011 by John Cook |
| Author | Sagredo |
| Other versions | File:Ratio_of_publishing_climate_scientists_who_believe_humans_are_warming_the_planet.jpg |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:47, 30 July 2019 | | 3,010 × 2,420 (7 KB) | Habitator terrae (talk | contribs) | corr for firefox // Editing SVG source code using c:User:Rillke/SVGedit.js |
| 21:42, 10 August 2012 |  | 3,010 × 2,420 (7 KB) | Nigelj (talk | contribs) | Reverted to version as of 22:10, 10 July 2012: valiant attempt at file-size reduction by Magasjukur2, but our renderer produces very blurred versions at low, 'thumb' resolutions. | |
| 23:40, 10 July 2012 |  | 3,010 × 2,420 (1 KB) | Magasjukur2 (talk | contribs) | Simplified using <pattern> | |
| 22:10, 10 July 2012 |  | 3,010 × 2,420 (7 KB) | Nigelj (talk | contribs) | simplify path that defines the figure | |
| 23:10, 26 February 2012 |  | 3,010 × 2,420 (13 KB) | Nigelj (talk | contribs) | Oops, markup wasn't valid. Add required xmlns declaration | |
| 22:57, 26 February 2012 |  | 3,010 × 2,420 (13 KB) | Nigelj (talk | contribs) | (1) Simplify SVG markup (2) Increase outline width for visibility (3) Both places where this file is used in articles, it illustrates "97–98%", so make 97th figure grey. | |
| 21:40, 25 February 2012 |  | 3,097 × 2,333 (658 KB) | Sagredo (talk | contribs) |
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