Michael E. Mann: Difference between revisions

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He is best known for his [[paleoclimate]] '[[hockey stick controversy|hockey stick]]' reconstructions of climatic fluctuations over the past several millennia, based on evidence from tree rings, ice cores, corals and other physical proxies. Such reconstructions have been the subject of some controversy; see [[temperature record of the past 1000 years]] for an overview. Mann's recent work has been on modelling [[El Niño]], and he has said that "we are already committed to 50 to 100 years of global warming and several centuries of [[sea level rise]]" and that reduction in [[fossil fuel]] emissions is required to slow the process down to a level that can be coped with.<ref name="Human">{{cite book |title=Critical Perspectives on World Climate |chapter=The Ongoing Debate over Climate Change |last=Appell |first=David |editor=Katy Human |year=2006 |publisher=The Rosen Publishing Group |location= |isbn=1404206884 |pages=163–164}}</ref>
He is best known for his [[paleoclimate]] '[[hockey stick controversy|hockey stick]]' reconstructions of climatic fluctuations over the past several millennia, based on evidence from tree rings, ice cores, corals and other physical proxies. Such reconstructions have been the subject of some controversy; see [[temperature record of the past 1000 years]] for an overview. Mann's recent work has been on modelling [[El Niño]], and he has said that "we are already committed to 50 to 100 years of global warming and several centuries of [[sea level rise]]" and that reduction in [[fossil fuel]] emissions is required to slow the process down to a level that can be coped with.<ref name="Human">{{cite book |title=Critical Perspectives on World Climate |chapter=The Ongoing Debate over Climate Change |last=Appell |first=David |editor=Katy Human |year=2006 |publisher=The Rosen Publishing Group |location= |isbn=1404206884 |pages=163–164}}</ref>


In November 2009, Mann's correspondence with fellow climate researchers was among that released in the [[Climatic Research Unit hacking incident]].<ref name='AP 2009-11-21'>{{cite news | first= | last= | coauthors= |authorlink= | title=Hackers leak climate change e-mails from key research unit, stoke debate on global warming | date=2009-11-21 | publisher=Associated Press | url =http://www.startribune.com/science/70700047.html | work = | pages = | accessdate = 2009-11-24 | language = }}</ref> In an interview broadcast by the [[BBC]], Mann commented that the "emails are genuine and have been misrepresented, cherry-picked, mined for single words and phrases that can be completely twisted to imply the opposite of what was actually being said..." <ref>[http://www.telegraph.co.uk/earth/copenhagen-climate-change-confe/6718183/Climategate-Phil-Jones-accused-of-making-error-of-judgment-by-colleague.html "Climategate: Phil Jones accused of making error of judgment by colleague"], news report by Chris Irvine, the [[Daily Telegraph]], published 03 Dec 2009.</ref> He wrote in ''The Washington Post'' that the hacked e-mails "do not undermine the scientific case that human-caused climate change is real."<ref name='Mann 2009-12-19'>{{cite news | first=Michael | last=Mann | coauthors= |authorlink= | title=E-mail furor doesn't alter evidence for climate change | date=2009-12-19 | publisher= | url =http://www.washingtonpost.com/wp-dyn/content/article/2009/12/17/AR2009121703682.html | work =The Washington Post | pages = | accessdate = 2009-12-18 | language = }}</ref>
In November 2009, Mann's correspondence with fellow climate researchers was among that released in the [[Climatic Research Unit hacking incident]].<ref name='AP 2009-11-21'>{{cite news | first= | last= | coauthors= |authorlink= | title=Hackers leak climate change e-mails from key research unit, stoke debate on global warming | date=2009-11-21 | publisher=Associated Press | url =http://www.startribune.com/science/70700047.html | work = | pages = | accessdate = 2009-11-24 | language = }}</ref> In an interview broadcast by the [[BBC]], Mann commented that the "emails are genuine and have been misrepresented, cherry-picked, mined for single words and phrases that can be completely twisted to imply the opposite of what was actually being said..." <ref>[http://www.telegraph.co.uk/earth/copenhagen-climate-change-confe/6718183/Climategate-Phil-Jones-accused-of-making-error-of-judgment-by-colleague.html "Climategate: Phil Jones accused of making error of judgment by colleague"], news report by Chris Irvine, the [[Daily Telegraph]], published 03 Dec 2009.</ref> He wrote in ''The Washington Post'' that the leaked e-mails "do not undermine the scientific case that human-caused climate change is real."<ref name='Mann 2009-12-19'>{{cite news | first=Michael | last=Mann | coauthors= |authorlink= | title=E-mail furor doesn't alter evidence for climate change | date=2009-12-19 | publisher= | url =http://www.washingtonpost.com/wp-dyn/content/article/2009/12/17/AR2009121703682.html | work =The Washington Post | pages = | accessdate = 2009-12-18 | language = }}</ref>


Although no formal allegations were made against Mann,<ref>http://www.research.psu.edu/orp/Findings_Mann_Inquiry.pdf</ref> in December 2009, [[Penn State University]] announced that it would be "looking into this matter further, following a well defined policy used in such cases", and noted that Mann's research had previously been reviewed and his "results were sound and has been subsequently supported by an array of evidence".<ref>{{cite web|title=University Reviewing Recent Reports on Climate Information|publisher=Pennsylvania State University|url=http://www.ems.psu.edu/sites/default/files/u5/Mann_Public_Statement.pdf|date=2009-11-28}}</ref> The Penn State inquiry report was published on February 3, 2010 and found there was no credible evidence on three of the four allegations that it considered. It stated that it did not have enough information to draw a conclusion on the fourth question, being whether Mann had deviated from accepted practices within the academic community. The inquiry remanded the fourth complaint to a panel of five prominent Penn State scientists, without making any judgements on the issue.<ref>{{cite news|last=Flam|first=Faye|title=Penn State climatologist cleared of misconduct|url=http://www.philly.com/philly/news/breaking/83508102.html|date=2010-01-03|accessdate=2010-01-04|work=Philadelphia Inquirer}}</ref>
Although no formal allegations were made against Mann,<ref>http://www.research.psu.edu/orp/Findings_Mann_Inquiry.pdf</ref> in December 2009, [[Penn State University]] announced that it would be "looking into this matter further, following a well defined policy used in such cases", and noted that Mann's research had previously been reviewed and his "results were sound and has been subsequently supported by an array of evidence".<ref>{{cite web|title=University Reviewing Recent Reports on Climate Information|publisher=Pennsylvania State University|url=http://www.ems.psu.edu/sites/default/files/u5/Mann_Public_Statement.pdf|date=2009-11-28}}</ref> The Penn State inquiry report was published on February 3, 2010 and found there was no credible evidence on three of the four allegations that it considered. It stated that it did not have enough information to draw a conclusion on the fourth question, being whether Mann had deviated from accepted practices within the academic community. The inquiry remanded the fourth complaint to a panel of five prominent Penn State scientists, without making any judgements on the issue.<ref>{{cite news|last=Flam|first=Faye|title=Penn State climatologist cleared of misconduct|url=http://www.philly.com/philly/news/breaking/83508102.html|date=2010-01-03|accessdate=2010-01-04|work=Philadelphia Inquirer}}</ref>

Revision as of 15:28, 13 April 2010

Michael E. Mann
Born (1965-12-28) 28 December 1965 (age 58)
Nationality United States
Alma materUniversity of California, Berkeley, Yale University
Known forHockey stick graph
Scientific career
FieldsMeteorology
InstitutionsPennsylvania State University, University of Virginia

Michael E. Mann (born 28 December 1965) is an American climatologist, and author of more than 80 peer-reviewed journal publications. He is best known as lead author of a number of articles on paleoclimate and as one of the originators of a graph of temperature trends dubbed the "hockey stick graph" for the shape of the graph. The graph received both praise and criticism after its publication in an Intergovernmental Panel on Climate Change (IPCC) report. The graph has been involved in controversy.

In 2009 he was promoted to professor at Pennsylvania State University, in the Department of Meteorology and Earth and Environmental Systems Institute and since 2005 has been Director of the university's interdepartmental Earth System Science Center.[1] He previously taught at the University of Virginia, in the Department of Environmental Sciences (1999–2005).

He was a Lead Author on the “Observed Climate Variability and Change” chapter of the Intergovernmental Panel on Climate Change (IPCC) Third Scientific Assessment Report (2001). He has been organizing committee chair for the National Academy of Sciences ‘Frontiers of Science’ and has served as a committee member or advisor for other National Academy of Sciences panels. He served as editor for the Journal of Climate and has been a member of numerous international and U.S. scientific advisory panels and steering groups.

Mann has been the recipient of several fellowships and prizes, including selection as one of the 50 leading visionaries in Science and Technology by Scientific American, the outstanding scientific publication award of the National Oceanic and Atmospheric Administration (NOAA), and recognition by the Institute for Scientific Information (ISI) for notable citation of his refereed scientific research. Mann is one of several climate scientists who contribute to the RealClimate blog.

He is best known for his paleoclimate 'hockey stick' reconstructions of climatic fluctuations over the past several millennia, based on evidence from tree rings, ice cores, corals and other physical proxies. Such reconstructions have been the subject of some controversy; see temperature record of the past 1000 years for an overview. Mann's recent work has been on modelling El Niño, and he has said that "we are already committed to 50 to 100 years of global warming and several centuries of sea level rise" and that reduction in fossil fuel emissions is required to slow the process down to a level that can be coped with.[2]

In November 2009, Mann's correspondence with fellow climate researchers was among that released in the Climatic Research Unit hacking incident.[3] In an interview broadcast by the BBC, Mann commented that the "emails are genuine and have been misrepresented, cherry-picked, mined for single words and phrases that can be completely twisted to imply the opposite of what was actually being said..." [4] He wrote in The Washington Post that the leaked e-mails "do not undermine the scientific case that human-caused climate change is real."[5]

Although no formal allegations were made against Mann,[6] in December 2009, Penn State University announced that it would be "looking into this matter further, following a well defined policy used in such cases", and noted that Mann's research had previously been reviewed and his "results were sound and has been subsequently supported by an array of evidence".[7] The Penn State inquiry report was published on February 3, 2010 and found there was no credible evidence on three of the four allegations that it considered. It stated that it did not have enough information to draw a conclusion on the fourth question, being whether Mann had deviated from accepted practices within the academic community. The inquiry remanded the fourth complaint to a panel of five prominent Penn State scientists, without making any judgements on the issue.[8]

Selected publications

  • With colleague Lee Kump the book Dire Predictions: Understanding Global Warming.
  • Mann, M.E., Defining Dangerous Anthropogenic Interference, Proc. Natl. Acad. Sci. 106, 4065-4066, 2009.
  • Mann, M.E. and Bradley, R.S. and Hughes, M.K., "Northern hemisphere temperatures during the past millennium: inferences, uncertainties, and limitations", Geophysical Research Letters, 26-6, 759-762, 1999. [1]
  • Mann, M.E. and Bradley, R.S. and Hughes, M.K., "Global-scale temperature patterns and climate forcing over the past six centuries", Nature, 392-6678, 779-787, 1998. [2]
  • Mann, M.E. and Jones, P.D., "Global surface temperatures over the past two millennia," Geophysical Research Letters, 30-15, 1820-1823, 2003. [3]
  • Mann, M.E. and Lees, J.M., "Robust estimation of background noise and signal detection in climatic time series," Climatic Change, 33-3, 409-445, 1996. [4][5]
  • Shindell, D.T. and Schmidt, G.A. and Mann, M.E. and Rind, D. and Waple, A., "Solar forcing of regional climate change during the Maunder Minimum," Science, 294-5549, 2149-2152, 2001. [6]

References

  1. ^ http://www.meteo.psu.edu/~mann/Mann/cv/cv.html
  2. ^ Appell, David (2006). "The Ongoing Debate over Climate Change". In Katy Human (ed.). Critical Perspectives on World Climate. The Rosen Publishing Group. pp. 163–164. ISBN 1404206884.
  3. ^ "Hackers leak climate change e-mails from key research unit, stoke debate on global warming". Associated Press. 2009-11-21. Retrieved 2009-11-24. {{cite news}}: Cite has empty unknown parameter: |coauthors= (help)
  4. ^ "Climategate: Phil Jones accused of making error of judgment by colleague", news report by Chris Irvine, the Daily Telegraph, published 03 Dec 2009.
  5. ^ Mann, Michael (2009-12-19). "E-mail furor doesn't alter evidence for climate change". The Washington Post. Retrieved 2009-12-18. {{cite news}}: Cite has empty unknown parameter: |coauthors= (help)
  6. ^ http://www.research.psu.edu/orp/Findings_Mann_Inquiry.pdf
  7. ^ "University Reviewing Recent Reports on Climate Information" (PDF). Pennsylvania State University. 2009-11-28.
  8. ^ Flam, Faye (2010-01-03). "Penn State climatologist cleared of misconduct". Philadelphia Inquirer. Retrieved 2010-01-04.

External links

External image
image icon Micheal Mann with tree rings
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