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Michael E. Mann

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1306: 951:. Mann promptly sued for defamation against Ball, the Frontier Centre and its interviewer. In June 2019, the Frontier Centre apologized for publishing, on its website and in letters, "untrue and disparaging accusations which impugned the character of Dr. Mann". It said that Mann had "graciously accepted our apology and retraction". This did not settle Mann's claims against Ball, who remained a defendant. On March 21, 2019, Ball applied to the court to dismiss the action for delay; this request was granted at a hearing on August 22, 2019, and court costs were awarded to Ball. The actual defamation claims were not judged, but instead, the case was dismissed due to delay, for which Mann and his legal team were held responsible. 474: 2146: 33: 5706: 2160: 738:(RegEM) method which did not require this PCA step. In May 2002 Mann and Scott Rutherford published a paper on testing methods of climate reconstruction which discussed this technique. By adding artificial noise to actual temperature records or to model simulations they produced synthetic datasets which they called "pseudo proxies". When the reconstruction procedure was used with these pseudoproxies, the result was then compared with the original record or simulation to see how closely it had been reconstructed. 1389:. He said, “This is the face of climate change", “We literally would not have seen these extremes in the absence of climate change". “The impacts of climate change are no longer subtle", “We are seeing them play out in real-time and what is happening this summer is a perfect example of that". “We are seeing our predictions come true", “As a scientist that is reassuring, but as a citizen of planet Earth, it is very distressing to see that as it means we have not taken the necessary action". 633:. Mann said that "As you go back farther in time, the data becomes sketchier. One can't quite pin things down as well, but, our results do reveal that significant changes have occurred, and temperatures in the latter 20th century have been exceptionally warm compared to the preceding 900 years. Though substantial uncertainties exist in the estimates, these are nonetheless startling revelations." When Mann gave a talk about the study to the 1440: 4156: (BCSC 2019) ("This is a relatively straightforward defamation action and should have been resolved long before now. That it has not been resolved is because the plaintiff has not given it the priority that he should have. In the circumstances, justice requires that the action be dismissed and, accordingly, I do hereby dismiss the action for delay."). 1044:
statements assert or imply false facts that defame the individual, they do not find shelter under the First Amendment simply because they are embedded in a larger policy debate". A counterclaim Steyn filed through his attorneys on March 17, 2014, was dismissed with prejudice by the D.C. court on August 29, 2019, leaving Steyn to pay litigation costs.
528:, but it and subsequent reconstructions compiled averages for decades, covering the whole hemisphere. Mann wanted temperatures of individual years showing differences between regions, to find spatial patterns showing natural oscillations and the effect of events such as volcanic eruptions. Sophisticated statistical methods had already been applied to 687:. Late in 1998 he heard that he had been selected as a lead author for the "observations" chapter of the Working Group I report. He was to work with the numerous contributing authors in preparing an assessment of the state of knowledge of the paleoclimate record, starting by soliciting input from the leading experts in that field. 4849: 1407:
and has been a member of numerous international and U.S. scientific advisory panels and steering groups. By 2010 he was the lead author or co-author of over 90 scientific publications, the majority of which had appeared in leading peer-reviewed scientific journals: as of 2016, his biographical sketch
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Mann was specifically cleared by several inquiries. Pennsylvania State University (PSU) commissioned two reviews related to the emails and his research, which reported in February and July 2010. They cleared Mann of misconduct, stating there was no substance to the allegations, but criticized him for
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Jeffrey Park, and their joint research adapted a statistical method developed for identifying seismological oscillations to find various periodicities in the instrumental temperature record, the longest being about 60 to 80 years. The paper Mann and Park published in December 1994 came to conclusions
923:; in that election, Cuccinelli was the Republican candidate. On the campaign trail, Mann promoted the role of scientific research and technology in job creation and highlighted the costs of the Cuccinelli's Civil Investigative Demand case, and the threat it had presented to the scientific community. 603:
and colleagues published a reconstruction going back a thousand years, but not specifically estimating uncertainties. As Bradley recalls, Mann's initial reaction to the paper was "Look at this. This is rubbish. You can't do this. There isn't enough information. There's too much uncertainty." Bradley
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and began research in collaboration with him and Park. Their research used paleoclimate proxy data from Bradley's previous work and methods Mann had developed with Park, to find oscillations in the longer proxy records. "Global Interdecadal and Century-Scale Climate Oscillations During the Past Five
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greenhouse gas emissions by 2025. Mann has often called for WWII-scale climate mobilization as a means of rapidly reducing greenhouse gas emissions. In June 2015, Mann criticized the G7 nations' goal of full decarbonization by 2100 as not very meaningful considering greenhouse gas emissions need to
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More recently, Mann's areas of research have included hurricanes and climate change, and climate modelling. His work using comparisons with the results of climate models indicated that cooling from large volcanoes was not fully shown by tree ring reconstructions, and suggested that in extreme cases
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The two conservative commentators accused of defamation mounted separate defenses, and both continued to disparage Mann during the first day of this long-anticipated trial... Back in 2022, Williams said Mann received about $ 3.5 million in funding a year. Today, that number is at $ 500,000, which
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in which he described several past, present and projected attacks on climate science and scientists by politicians, drawing a link between them and "the pseudo-science that questioned the link between smoking cigarettes and lung cancer, and the false claims questioning the science of acid rain and
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to obtain documentation relating to Mann's work at the university. The demand sparked widespread academic condemnation as a "blatantly political" attempt to intimidate and silence Mann, and was denied in August 2010 by a judge for failure to state sufficient cause. Cuccinelli tried to re-open his
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endorsed the MBH studies with a few reservations. The principal component analysis methodology had a small tendency to bias results so was not recommended, but it had little influence on the final reconstructions, and other methods produced similar results. Mann has said his findings have been
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during the twentieth century. Northern Hemisphere mean annual temperatures for three of the past eight years are warmer than any other year since (at least) AD 1400. The last point received most media attention. Mann was surprised by the extent of coverage which may have been due to the chance
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as opinion. Steyn chose to be represented by attorney Daniel J. Kornstein. On December 22, 2016, the D.C. appeals court ruled that Mann's case against Simberg and Steyn could go ahead. A "reasonable jury" could find against the defendants, and though the context should be considered, "if the
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published reconstructions using various high-resolution proxies including tree rings, ice cores and sediments. This study indicated that that Northern Hemisphere late 20th century warmth had no precedent for roughly 2,000 years, dwarfing Medieval warmth, but proxy data was still too sparse to
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After repeated attacks against his and his colleagues' academic work and being "hounded by elected officials, threatened with violence, and more", Mann decided to "enter the fray" and "speak out about the very real implications of our research." Mann has engaged with the public through film,
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legislation, with the claim that they had merely been using exaggerated language which was acceptable against a public figure. In July 2013, the judge ruled against this motion, and when the defendants took this to appeal a new judge also denied their motion to dismiss, in January 2014.
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case by issuing a revised subpoena, and appealed the case to the Virginia Supreme Court. The case was defended by the university, and the court ruled that Cuccinelli did not have the authority to make these demands. The decision, seen as supporting academic freedom, was welcomed by the
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cooling caused by eruptions could result in trees showing no growth, and hence no tree ring for that year. The result would be that tree ring reconstructions could understate climate variability, and there has been scientific debate about the methodology and validity of these findings.
230:, Mann used advanced statistical techniques to find regional variations in a hemispherical climate reconstruction covering the past 600 years. In 1999 the same team used these techniques to produce a reconstruction over the past 1,000 years (MBH99), which was dubbed the " 532:, but to get wider geographical coverage these tree ring records had to be related to sparser proxies such as ice cores, corals and lake sediments. To avoid giving too much weight to the more numerous tree data, Mann, Bradley and Hughes used the statistical procedure of 403:
levels were high, but fossils indicated most warming at the poles, with little warming in the tropics. Mann then joined the Yale Department of Geology and Geophysics, obtaining an MPhil in geology and geophysics in 1993. His research focused on natural variability and
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presented Mann, along with all other "scientists that had contributed substantially to the preparation of IPCC reports", with a personalized certificate "for contributing to the award of the Nobel Peace Prize for 2007 to the IPCC", celebrating the joint award of the
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in 2009 and to "Distinguished Professor of Meteorology" in 2013. In fall 2022 Mann was appointed presidential distinguished professor in the Department of Earth and Environmental Science with a secondary appointment in the Annenberg School for Communication at the
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suggested using the MBH98 methodology to go further back. Within a few weeks, Mann responded that to his surprise, "There is a certain amount of skill. We can actually say something, although there are large uncertainties." Mann carried out a series of statistical
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published in 2001. A graph based on the MBH99 paper was highlighted in several parts of the report and was given wide publicity. The IPCC acknowledged that his work, along with that of the many other lead authors and review editors, contributed to the award of the
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but he found himself being pushed towards detailed semiconductor work. He looked at course options with a wider topic area and was enthused by PhD adviser Barry Saltzman about climate modelling and research. To try this out he spent the summer of 1991 assisting a
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for "his significant contributions to understanding decadal-centennial scale climate change over the last two millennia and for pioneering techniques to synthesize patterns and northern hemispheric time series of past climate using proxy data reconstructions."
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In 2020, Mann raised the hypothesis that the Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO), hitherto regarded as internal oscillations of the climate system, are due to climatic noise and anthropogenic sulfate aerosols.
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personalized certificates .... were sent to coordinating lead authors, lead authors, review editors, Bureau members, staff of the technical support units and staff of the secretariat from the IPCC's inception in 1988 until the award of the prize in
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of the reconstruction. They chose the period 1902–1980 for calibration, leaving the previous 50 years of instrumental data for validation. This showed that the statistical reconstructions were only skillful (statistically meaningful) back to 1400.
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And in a wide-ranging interview, Mann says that not all global warming science is settled. It's not yet certain, for example, that the heat is reducing the world population of polar bears or that it increases the number of hurricanes, he
557:" in Eurasia and much of North America had been offset by warmer than usual temperatures in Labrador and the Middle East. It was also an advance on earlier reconstructions in that it went back further, showed individual years, and showed 2824:
Jones, P. D.; Briffa, K. R.; Barnett, T. P.; Tett, S. F. B. (1998). "High-resolution palaeoclimatic records for the last millennium: interpretation, integration and comparison with General Circulation Model control-run temperatures".
612:" each proxy in turn to see the effect its removal had on the result. He found that a dataset which would otherwise have been reliable diverged from 1800 until around 1900, suggesting that it had been affected for that time by the CO 3760:
Zinser, Todd J., Inspector General of the U.S. Dept. of Commerce, in a letter to Sen. Inhofe, February 18, 2011, wrote, "We found no evidence in the CRU emails that NOAA inappropriately manipulated data comprising the GHCN-M
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In 2018, Mann explained that the west Antarctic ice sheet may lose twice as much ice by the end of the century as previously thought, which also doubles the projected rise in sea level from three feet to more than six feet.
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had favored hearing the case on the basis that, even though the defendants might yet prevail in the case, or the outcome itself come before the Court for review, the expense of litigating the case this far might itself
1024:, welcomed the judge's statement that accusations of fraud "go to the heart of scientific integrity. They can be proven true or false. If false, they are defamatory. If made with actual malice, they are actionable." 817:, commonly known as "Climategate", in which extracts from emails were publicized to raise accusations against the scientists. A series of investigations cleared the scientists of wrongdoing. Detailed analysis by the 967:(CEI) blogger Rand Simberg accused Mann of "deception" and "engaging in data manipulation" and alleged that the Penn State investigation that had cleared Mann was a "cover-up and whitewash" comparable to the recent 2195: 620:". Using this dataset corrected in comparisons with other tree series, their reconstruction passed the validation tests for the extended period, but they were cautious about the increased uncertainties involved. 3736:"Denial of Petitions for Reconsideration of the Endangerment and Cause or Contribute Findings for Greenhouse Gases under Section 202(a) of the Clean Air Act / Regulatory Initiatives / Climate Change / U.S. EPA" 699:
Mann continued his interest in improving methodology to find patterns in high-resolution paleoclimate reconstructions: he was the lead author with Bradley and Hughes on a study of long term variability in the
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reported in 2014, "The professor operates active Twitter and Facebook accounts. In several weeks, he'll take part in an "Ask Me Anything" session on Reddit. For him, it's about engaging with the community."
797:, using various statistical methods and combinations of proxy records, support the broad consensus shown in the original hockey stick graph, with variations in how flat the pre-20th century "shaft" appears. 690:
Mann was one of eight lead authors of the "Observed Climate Variability and Change" chapter of the report, working under the two co-ordinating lead authors for the chapter. The report was published in 2001.
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applying randomness in computer simulations. Late in 1987, he joined a research team under Didier de Fontaine which was using similar Monte Carlo methodology to investigate the superconducting properties of
323:(2023). In 2012, the European Geosciences Union described his publication record as "outstanding for a scientist of his relatively young age". Mann is a co-founder and contributor to the climatology blog 536:
to represent these larger datasets in terms of a small number of representative series and compare them to the sparser proxy records. The same procedure was also used to represent key information in the
3695:"RA-10 Inquiry Report: Concerning the Allegations of Research Misconduct Against Dr. Michael E. Mann, Department of Meteorology, College of Earth and Mineral Sciences, The Pennsylvania State University" 1080:
The lawsuit against writers Mark Steyn and Rand Simberg, filed in 2012, went to trial on January 18, 2024. On February 8, 2024 Michael Mann was awarded punitive damages of $ 1000 against Simberg and $ 1
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in the spring of 1996, and was awarded the Phillip M. Orville Prize for outstanding dissertation in the earth sciences in the following year. He was granted his PhD in geology and geophysics in 1998.
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The allegations were of "manipulating data, destroying records and colluding to hamper the progress of scientific discourse around the issue of anthropogenic global warming from approximately 1998."
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Mann's dissertation was awarded the Phillip M. Orville Prize in 1997 as an "outstanding dissertation in the earth sciences" at Yale University. His co-authorship of a scientific paper published by
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stated that he was author of more than 200 peer-reviewed and edited publications. Between 1999 and 2010 he served as principal or co-principal investigator on five research projects funded by the
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also carried out a detailed investigation, which it closed on August 15, 2011. It agreed with the conclusions of the university inquiries, and exonerated Mann of charges of scientific misconduct.
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Another study by Mann and Park raised a minor technical issue with a climate model about human influence on climate change: this was published in 1996. In the context of the controversy over the
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in its third annual list of the "50 Most Influential" people, included in a group of "thinkers" with reference to his work with other scientists on the hockey stick graph, his responses on the
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the hole in the ozone layer." Saying they were "not good-faith questioning of scientific research anti-science", he called for all his fellow scientists to stand against the attacks.
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responded in an article headed "Get Lost" with a declaration that, should Mann sue, the discovery process would be used to reveal and publish Mann's emails. Mann's lawyer filed the
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As attacks on the work and reputation of climatologists continued, Mann discussed with colleagues the need for a strong response when they were slandered or libeled. In July 2012,
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be reduced dramatically within the next decade, well ahead of the G7's timeline. "In my view, the science makes clear that 2050 or 2100 is way too far down the road," he told
821:(EPA) found that the critics made unsupported accusations of falsification and manipulation or destruction of data and were commonly mistaken about the scientific issues. 592:
repeatedly asked him if it proved that humans were responsible for global warming, to which he would go no further than that it was "highly suggestive" of that inference.
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website, launched in December 2004. The website's purpose is to provide a site for commentaries by working climate scientists, "for interested public and journalists".
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similar to those from a study developed in parallel using different methodology and published in January of that year, which found what was later called the
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Mann, Michael E.; Park, Jeffrey; Bradley, R. S. (1995). "Global interdecadal and century-scale climate oscillations during the past five centuries".
1040: 4886: 4491:, (Super. Ct. D.C. 2014). "Represent political and cultural commentator Mark Steyn as defendant in libel suit brought by climate change scientist." 4594: 1401:'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 3469: 1409: 1107: 860: 634: 362:, modelling transitions between ordered and disordered phases. He graduated with honors in 1989 with an A.B. in applied mathematics and physics. 5249: 4978: 4527: 4307: 5765: 3627: 1012: 65:
A.B. applied mathematics and physics (1989), MS physics (1991), MPhil physics (1991), MPhil geology (1993), PhD geology & geophysics (1998)
4201: 565:. "Global-scale temperature patterns and climate forcing over the past six centuries" (MBH98) was published on April 23, 1998, in the journal 517:
reconstructions. He taught a course in Data Analysis and Climate Change in 1997 and became a research assistant professor the following year.
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Mann, M. E.; Bradley, R. S.; Hughes, M. K. (1998). "Global-scale temperature patterns and climate forcing over the past six centuries".
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of 2001, and became the focus of controversy when some individuals and groups disputed the data and methodology of this reconstruction.
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awarded him its Editors' Citation for Excellence in Refereeing in 2006 to recognize his contributions in reviewing manuscripts for its
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for his "exceptional contribution in writing or editing Earth science materials for the general public or teachers of Earth science."
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in the hope it would hear their appeal. In November 2019, it denied the petition without comment. In a dissenting opinion, justice
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The Madhouse Effect : How Climate Change Denial Is Threatening Our Planet, Destroying Our Politics, and Driving Us Crazy
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million against Steyn. Mann commented "I hope this verdict sends a message that falsely attacking climate scientists is not
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Christy, J. R.; Clarke, R. A.; Gruza, G. V.; Jouzel, J.; Mann, M. E.; Oerlemans, J.; Salinger, M. J.; Wang, S.-W. (2001).
1795:— (2015). "The Serengeti strategy: How special interests try to intimidate scientists, and how best to fight back". 658:
In 1999, Mann secured a position as a tenure-track assistant professor in the department of environmental sciences at the
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in October 2012. Defendants were the National Review, the Competitive Enterprise Institute, Mark Steyn and Rand Simberg.
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Williams claimed is a direct result of Steyn and Simberg's attacks on Mann and his personal and professional reputation.
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The Madhouse Effect: How Climate Change Denial Is Threatening Our Planet, Destroying Our Politics, and Driving Us Crazy
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as one of the fifty leading visionaries in science and technology in 2002. In 2012 he was inducted as a Fellow of the
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The Madhouse Effect How Climate Change Denial Is Threatening Our Planet Destroying Our Politics and Driving Us Crazy
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was awarded to the IPCC as an organization, and the prize was not an award to any individual involved with the IPCC.
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said that he would be honored with the 7th annual Stephen H. Schneider Award for Outstanding Science Communication.
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The original MBH98 and MBH99 papers avoided undue representation of large numbers of tree ring proxies by using a
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Their study highlighted interesting findings, such as confirming anecdotal evidence that there had been a strong
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Schlesinger, M. E.; Ramankutty, N. (1994). "An oscillation in the global climate system of period 65–70 years".
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Committee on Surface Temperature Reconstructions for the Last 2,000 Years, National Research Council (2006).
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awarded him the John Russell Mather Paper of the Year award in 2005 for a co-authored paper published in the
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Figures based on the northern hemisphere mean temperatures graph from MBH99 were prominently featured in the
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The EPA gave detailed consideration to petitions with allegations against Mann from lobbyists including the
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in surface temperatures, and would change to enhanced surface warming in the next phase of the oscillation.
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and with other scientists, including Mann. The release of their correspondence on the Internet sparked the
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Questions surrounding the 'Hockey stick' temperature studies; implications for climate change assessments
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to remove the allegations and apologize, or he would take action. The CEI published further insults, and
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Mann is author of more than 200 peer-reviewed and edited publications. He has also published six books:
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Northern Hemisphere temperatures during the past millennium: inferences, uncertainties, and limitations
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changed its lawyers, and Steyn decided to represent himself in court. Journalist Seth Shulman, at the
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step to summarise these proxy networks, but from 2001 Mann stopped using this method and introduced a
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the paper was praised by those opposed to action on climate change, and the conservative organization
5815: 5657: 5580: 4538: 1930: 1212: 810: 589: 2956:"News Releases : 1998 Was Warmest Year of Millennium, UMass Amherst Climate Researchers Report" 1717: 1627: 1272:. Along with Antonella Santuccione Chadha, he also received the World Sustainability Award from the 1173:
he became a new Fellow of the society in 2013. In January 2013 he was designated with the status of
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Frontiers of Science in 2003 and has received a number of honors and awards including selection by
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As someone of Jewish ancestry, I'm truly horrified that anyone could be so cynical and insensitive
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El Niño and the southern oscillation : multiscale variability and global and regional impact
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On March 19, 2021, the DC Superior Court ruled that "Steyn’s actual malice cannot be imputed" to
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August 29th, 2019: Order Granting Motion to Dismiss the Counterclaims of Counter-Plaintiff Steyn
3465:"A noodle, hockey stick, and spaghetti plate: A perspective on high-resolution paleoclimatology" 3319: 2000: 1211:, and in 2016 he was elected Vice Chair of the Topical Group on Physics of Climate (GPC) at the 840:, and the Ohio Coal Association: the EPA found their claims were not supported by the evidence. 5845: 5760: 5314: 4786: 4172: 1712: 1143: 806: 805:
In November 2009, hackers obtained a large number of emails exchanged among researchers at the
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in Penn State's College of Earth and Mineral Sciences. In 2017, he was elected a Fellow of the
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A paper published in April 2014 by Mann and co-authors set out a new method of defining the
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A study of ocean-atmosphere interaction and low-frequency variability of the climate system
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announced that its first annual Friend of the Planet award had been presented to Mann and
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A study of ocean-atmosphere interaction and low-frequency variability of the climate system
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The Mann, Bradley and Hughes reconstruction covering 1,000 years (MBH99) was published by
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announced that Mann was chosen to receive the 2018 Public Engagement with Science award.
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Our Fragile Moment: How Lessons from Earth's Past Can Help Us Survive the Climate Crisis
1855: 1808: 1759: 1708: 1646: 1582: 1541: 1482: 1445: 5629: 5441: 4023: 3913: 3599: 3496: 3255: 3007: 2850: 2794: 2667: 2585: 2106: 1898: 1872: 1838: 1833: 1820: 1778: 1743: 1730: 1676: 1553: 1494: 1403: 1237: 1054: 558: 498: 436: 429: 354: 223: 5138: 863:, and concluded that there was no evidence of inappropriate manipulation of data. The 203:. He is the director of the Center for Science, Sustainability & the Media at the 5691: 5661: 5633: 5363: 4986: 4046: 3400: 3349: 3260: 3014: 2798: 2703: 2693: 2444: 2114: 2072: 2054: 2029: 1987: 1953: 1934: 1909: 1877: 1824: 1783: 1668: 1612: 1557: 1498: 1351: 1181: 1085: 852: 576: 529: 502: 454: 379: 227: 4922: 3951:"Virginia court rejects sceptic's bid for climate science emails : Environment" 3500: 2671: 1467:"Robust estimation of background noise and signal detection in climatic time series" 708:, published in 2000. His areas of research have included climate signal detection, 5619: 5353: 4677:"After 12 Years, Climate Scientist's Lawsuit Against Alleged Defamers Begins Trial" 4654:"US climate scientist's defamation case over online attacks finally comes to trial" 4232: 4117:"A Scientist Took Climate Change Deniers to Court and Wrested an Apology From Them" 3486: 3424: 3390: 3341: 3250: 3242: 3168: 2935: 2854: 2842: 2786: 2659: 2589: 2577: 2549: 1867: 1859: 1812: 1773: 1763: 1734: 1722: 1680: 1658: 1650: 1586: 1545: 1523:"Global-scale temperature patterns and climate forcing over the past six centuries" 1486: 1334: 1321: 1098: 642: 572: 567: 506: 486: 442: 420:
In 1994, Mann participated as a graduate student in the inaugural workshop of the
32: 5681: 4563: 4440:"Groups rally around think tank, publication being sued for global warming views" 3795: 3331: 2689: 2438: 2173: 2119: 1847: 1370: 1356: 1063: 973: 912: 514: 435:
While still finishing his PhD research, Mann met UMass climate science professor
371: 77: 2159: 1261:
On February 12, 2019, Mann and Warren Washington were named to receive the 2019
1106:(ISI) in 2002, and another co-authored paper published in the same year won the 683:
Before the publication of MBH98, Mann had been nominated to be an author on the
5549:"Extreme global weather is 'the face of climate change' says leading scientist" 4502:"Court: Climate scientist can sue conservative writers over alleged defamation" 3880: 3635: 3460: 3246: 2846: 1970: 1905: 1382: 1039:, arguing that the comments at issue were constitutionally protected under the 886: 833: 705: 400: 350: 208: 5724: 5250:"Mann to receive Leo Szilard Lectureship Award from American Physical Society" 1416:(NSF). He was also co-investigator on other projects funded by the NOAA, NSF, 513:, with the aim of developing and applying an improved statistical approach to 5739: 5731:. UH (University of Hawaii) Better Tomorrow Speaker Series. January 13, 2022. 5624: 5607: 3315: 2963: 2050: 1816: 1374: 1317: 1294: 1204: 1032: 134: 2707: 2463: 1768: 1663: 1654: 485:
From 1996 to 1998, after defending his PhD thesis at Yale, Mann carried out
5553: 5367: 3628:"Climate-Change Scientist Cleared in Closing of U.S. Data-Altering Inquiry" 3404: 3264: 3102: 2094: 1881: 1787: 1672: 1058: 785: 600: 409: 5526: 2408:"Center for Inquiry News: Cause & Effect: The CFI Newsletter – No. 99" 2243:. University of Pennsylvania Department of Earth and Environmental Science 2090:"Approving Keystone XL could be the biggest mistake of Obama's presidency" 1611:. Cambridge & New York: Cambridge University Press. pp. 357–413. 5713:"EPA Climate Lecture with Professor Michael Mann (on 15th November 2021)" 5318: 5267: 5116: 4391: 4308:"'Hockey stick graph' climate researcher's defamation suit to go forward" 3693:
Foley, Henry C.; Scaroni, Alan W.; Yekel, Candice A. (February 3, 2010).
3514: 3285: 3173: 2940: 2289:"Michael Mann awarded the 2019 Tyler Prize for Environmental Achievement" 1974: 1726: 1625: 1591: 1566: 1325: 1258:
announced Mann as the 2018 recipient of its Climate Communication Prize.
1219: 1185: 717: 425: 325: 196: 152: 4141: 5687: 1967:
excerpt available from National Center for Science Education (ncse.ngo)
1490: 1049: 997: 993: 978: 940: 844: 458: 396: 216: 200: 5696: 5653:
The Hockey Stick and the Climate Wars: Dispatches from the Front Lines
4768: 4640:
Order Granting Defendant National Review’s Motion For Summary Judgment
4082: 2602: 2553: 1926:
The Hockey Stick and the Climate Wars: Dispatches from the Front Lines
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cited it and alleged that Mann's hockey stick graph was "fraudulent".
874: 701: 4707:"Michael Mann, a Leading Climate Scientist, Wins His Defamation Suit" 4470: 4202:"Climate scientist gets compared to Jerry Sandusky, files libel suit" 3572:"'Climategate' had only fleeting effect on global warming scepticism" 3456: 3395: 3370: 2663: 2581: 1628:"Solar forcing of regional climate change during the Maunder Minimum" 1116:
as one of fifty "leading visionaries in science and technology”. The
1110:'s outstanding scientific publication award. In 2002 he was named by 581: 562: 302: 5358: 5333: 5008:"Bloomberg Markets names Michael Mann to '50 Most Influential' list" 3876:"Court sets aside Cuccinelli investigation of UVA climate scientist" 2023: 4738:"US climate scientist Michael Mann wins $ 1m in defamation lawsuit" 3491: 3464: 3345: 944: 207:. Mann has contributed to the scientific understanding of historic 4955: 2790: 1549: 4092:. Frontier Centre For Public Policy. June 7, 2019. Archived from 3818: 3146:"On Forced Temperature Changes, Internal Variability and the AMO" 1147: 1077:
summary judgment dismissing Mann's case against the publishers.
248: 5294:"Outstanding scientists elected as Fellows of the Royal Society" 5200:"Michael Mann Awarded Tyler Prize for Environmental Achievement" 5113:"2017 Stephen H. Schneider Award Bestowed Upon Dr. Michael Mann" 5031:"BNWF to Honor Michael Mann with Conservation Achievement Award" 4537:. District of Columbia Courts. December 22, 2016. Archived from 4019:"Ex-UVa professor Mann stumps with McAuliffe in Charlottesville" 2375:"EGU – Awards & Medals – Hans Oeschger Medal – Michael Mann" 2332:"Outstanding scientists elected as Fellows of the Royal Society" 1626:
Shindell D.T.; Schmidt G.A.; —; Rind D.; Waple A. (2001).
1520: 1362:
Since 2013, Mann has been listed on the Advisory Council of the
1279:
In 2022, the American Physical Society recognized Mann with the
1192:", and his book publications. Later that month, he received the 1027:
The defendants again appealed the decision. In August 2014, the
468: 5139:"2017 Awardee – Michael E. Mann, Pennsylvania State University" 4267:. Superior Court of the District of Columbia. October 22, 2012. 3996:"McAuliffe, Mann Encourage Science & Technology Innovation" 3221:
Mann, M. E.; Steinman, B. A.; Miller, S. K. (January 3, 2020).
3196:"Climate Scientist Won't Back Down Despite Threats, Harassment" 2966:
Office of News & Information. March 3, 1999. Archived from
1378: 1309: 478: 5164:"Michael E. Man Receives Public Engagement with Science award" 4838:. Michael E. Mann, Timeline Photos: Facebook. October 30, 2012 4413:"Competitive Enterprise Institute and National Review v. Mann" 3827:"Academics fight Cuccinelli's call for climate-change records" 1240:
announced that Mann had been elected as a 2017 Fellow of its
720:
analysis and comparing the results of modelling against data.
4638:
Superior Court of the District of Columbia (March 19, 2021).
1386: 932:
Lawsuit against Tim Ball, the Frontier Centre and interviewer
891:
Civil Investigative Demand against the University of Virginia
3857:"A judge puts a damper on Mr. Cuccinelli's U-Va. witch hunt" 3333:
Surface Temperature Reconstructions for the last 2,000 years
881:
Attorney General of Virginia's climate science investigation
5464:"The Gathering Storm – Michael Mann & Daniel M. Kammen" 5083:"Friend of Darwin and Friend of the Planet awards for 2014" 4735: 4362:"Climate scientist's defamation suit allowed to go forward" 2083: 1273: 222:
As lead author of a paper produced in 1998 with co-authors
184: 4923:"2013 AMS Honorary Members, Awards, Lecturers and Fellows" 3662:"Final Investigation Report Involving Dr. Michael E. Mann" 5801:
Members of the United States National Academy of Sciences
5573: 4979:"Most Influential 50's New Names Show Shakeup in Finance" 4602: 3998:. NBC29 WVIR Charlottesville, VA News, Sports and Weather 1690:"Global surface temperatures over the past two millennia" 585: 341:, where his father was a professor of mathematics at the 3543: 3222: 3000: 2436: 1196:'s National Conservation Achievement Award for Science. 4072:
Michael Mann v. Timothy Ball, Frontier Centre, John Doe
3098:"Tree ring history spurs actual climate science debate" 1177:
in Penn State's College of Earth and Mineral Sciences.
885:
Based on the CRU email leak, Virginia Attorney General
524:
temperatures had been published in 1993 by Bradley and
5751:
Intergovernmental Panel on Climate Change lead authors
3600:"Scientists' 'Climategate' e-mails 'just discussions'" 3454: 2823: 2046:
The New Climate War: The Fight to Take Back Our Planet
772: 716:, developing and assessing methods of statistical and 4805:. IPCC Press Office. October 29, 2012. Archived from 4353: 4064: 3594: 3592: 3411: 2559: 731:
Climate Field Reconstruction (CFR) technique using a
608:
on 24 long term datasets, in which he statistically "
5182:"Mann Receives 2018 AGU Climate Communication Prize" 4952:"Chen and Mann named distinguished professor in EMS" 3544:
Fischer, Douglas; The Daily Climate (July 1, 2010).
3144:
Mann, M. E.; Steinman, B. A.; Miller, S. K. (2014).
2263:"Mann receives 2018 AGU Climate Communication Prize" 2141: 825:
sharing unpublished manuscripts with third parties.
386:
in physics in 1991. His interest was in theoretical
365: 332: 4954:. Penn State Live. January 24, 2013. Archived from 4877: 4219: 4166: 4164: 4162: 3968: 3621: 3619: 3617: 3278: 2914:Mann, M. E.; Bradley, R. S.; Hughes, M. K. (1999). 2369: 2367: 1249:
American Association for the Advancement of Science
1209:
American Association for the Advancement of Science
875:
Attorney General of Virginia's investigative demand
5490:"G7 Carbon Goal May Come Too Late, Scientists Say" 5219:"Michael Mann receives World Sustainability Award" 4836:"Letter from Renate Christ, Secretary of the IPCC" 3796:"Climate scientist cleared of research misconduct" 3589: 3507: 3220: 3143: 3006: 2948: 1897: 1422:United States Agency for International Development 4970: 4878:Bralower, Timothy; Rosenhoover, Christie (2007). 4800:"IPCC Statement about the 2007 Nobel Peace Prize" 4775:. Penn State Meteorology and Atmospheric Science. 4645: 3692: 3546:"Climategate Scientist Cleared in Inquiry, Again" 3062: 3033: 2913: 2768: 1599: 1564: 1397:Mann has been organizing committee chair for the 1290:gave Mann their 2023 Humanist of the Year award. 947:and published his allegations about Mann and the 5737: 4887:Penn State College of Earth and Mineral Sciences 4736:Guardian staff and agencies (February 9, 2024). 4159: 3742:. Environmental Protection Agency. July 29, 2010 3614: 2430: 2364: 2115:"The Single Shining Hope to Stop Climate Change" 125:Tyler Prize for Environmental Achievement (2019) 5143:The National Association of Geoscience Teachers 5105: 4900: 4195: 4193: 3470:Wiley Interdisciplinary Reviews: Climate Change 3420:"Penn State climate professor: 'I'm a skeptic'" 3117: 2641: 2603:House Committee on Energy and Commerce (2006). 1744:"Defining Dangerous Anthropogenic Interference" 1600:—; Bradley, R. S.; Hughes, M. K. (2000). 1410:National Oceanic and Atmospheric Administration 1108:National Oceanic and Atmospheric Administration 1007:Before the case could go to discovery, CEI and 678: 635:National Oceanic and Atmospheric Administration 541:for comparison with the proxy series, enabling 520:The first truly quantitative reconstruction of 457:claimed that it had not been publicized due to 293:Dire Predictions: Understanding Global Warming 5836:Fellows of the American Meteorological Society 5057:"Mann receives Conservation Achievement Award" 4299: 3987: 3320:"Science Panel Backs Study on Warming Climate" 2868: 2866: 2864: 1950:Dire predictions: understanding global warming 1900:Dire predictions: understanding global warming 497:postdoctoral fellowship. He collaborated with 4729: 4624:National Review Prevails against Michael Mann 4108: 4044: 3656: 3654: 3652: 3089: 1832:—; Rahmstorf, Stefan (March 27, 2017). 1831: 1565:—; Bradley, R.S.; Hughes, M.K. (1999). 1464: 1229:He received the James H. Shea Award from the 911:Mann was a supporter of Democratic candidate 819:United States Environmental Protection Agency 469:Postdoctoral research: the hockey stick graph 213:temperature record of the past thousand years 5217:Messer, A'ndrea Elyse (September 14, 2020). 5055:Messer, A'ndrea Elyse (September 23, 2013). 5000: 4417:Reporters Committee for Freedom of the Press 4385: 4190: 3686: 2478: 2190: 2188: 1607:. In Diaz, Henry F.; Markgraf, Vera (eds.). 1268:In April 2020, he was elected member of the 1029:Reporters Committee for Freedom of the Press 254:Mann was organizing committee chair for the 5771:University of Massachusetts Amherst faculty 5585:Penn State Meteo Computing System Home Page 5010:. Penn State University. September 16, 2013 4704: 4437: 3977:"Get the anti-science bent out of politics" 2872: 2861: 2402: 2400: 2021: 1521:—; Bradley R.S.; Hughes M.K. (1998). 1381:, and on the other side of the world, from 1231:National Association of Geoscience Teachers 119:Public Engagement with Science Award (AAAS) 5831:American non-fiction environmental writers 5704: 4977:Dieterich, Robert S. (September 3, 2013). 4477:. Kornstein Veisz Wexle, & Pollard LLP 4252: 4250: 4170: 3948: 3873: 3788: 3649: 3625: 3569: 3448: 3362: 2873:Monastersky, Richard (September 8, 2006). 790:United States National Academy of Sciences 276:. In 2013, he was elected a Fellow of the 31: 5806:Fellows of the American Geophysical Union 5776:University of California, Berkeley alumni 5623: 5357: 5075: 4976: 4910:. Penn State University. October 16, 2012 4280:"Opinion | A Climate Change for Lawsuits" 3490: 3394: 3254: 3172: 3056: 3009:Climate Change 2001: The Scientific Basis 3003:"Observed Climate Variability and Change" 2939: 2185: 1981: 1871: 1777: 1767: 1741: 1716: 1687: 1662: 1590: 1350:, with the goal of 100% clean energy and 1332:television, radio, the press, and talks. 1263:Tyler Prize for Environmental Achievement 1011:filed a court motion to dismiss it under 337:Mann was born in 1965, and brought up in 236:Intergovernmental Panel on Climate Change 88:Temperature record of the past 1000 years 4792: 4705:Erdenesanaa, Delger (February 8, 2024). 4570:. Williams Lopatto PLLC. August 29, 2019 4438:Chakraborty, Barnini (August 14, 2014). 4331: 4114: 4090:"Retraction and Apology to Michael Mann" 4047:"Prof Claims Climate-Denier Defamed Him" 4016: 3900: 3368: 2524: 2397: 2084:Selected editorials and opinion articles 1947: 1895: 1431: 1373:events striking across Europe, from the 1304: 1153:In 2012, he was elected a Fellow of the 901:In October 2010, Mann wrote an op-ed in 815:Climatic Research Unit email controversy 800: 645:nicknamed the graph the "hockey stick". 472: 422:National Center for Atmospheric Research 247:, which was won jointly by the IPCC and 5229:from the original on September 15, 2020 4247: 3874:Fitzgerald, Brendan (August 30, 2010). 3626:Efstathiou, Jim Jr. (August 22, 2011). 3124:Messer, A'ndrea Elyse (April 7, 2014). 3095: 1986:. New York: Columbia University Press. 1369:In July 2018, Mann commented on recent 859:investigated the emails in relation to 653: 553:in 1791, and finding that in 1816 the " 5738: 5725:"Michael E. Mann: The New Climate War" 5605: 5581:"Michael E. Mann: Biographical Sketch" 5216: 5054: 4763: 4761: 4759: 4674: 4664:from the original on January 19, 2024. 4359: 4305: 4278:McGurn, William (September 23, 2019). 4277: 4199: 4017:Hutchins, J. Reynolds (July 1, 2013). 3824: 3513: 3417: 3314: 3284: 3123: 3096:Johnson, Scott K. (February 4, 2013). 3050: 959:, the CEI, Mark Steyn and Rand Simberg 926: 629:in March 1999 with the cautious title 123:AGU Climate Communication Prize (2018) 5766:Pennsylvania State University faculty 5523:National Center for Science Education 5383:"If You See Something, Say Something" 5381:Mann, Michael E. (January 17, 2014). 5247: 5091:National Center for Science Education 5028: 4855:Mann, Michael E. (October 25, 2012). 4468: 4171:Eichenwald, Kurt (January 30, 2014). 3993: 3949:Goldenberg, Suzanne (March 2, 2012). 3927: 3909:"Cuccinelli orders new investigation" 3906: 3126:"Slowdown of global warming fleeting" 3038: 2875:"Climate Science on Trial – Research" 2346:"A Conversation With Michael E. Mann" 2312: 2310: 2102:"If You See Something, Say Something" 2006:National Center for Science Education 1364:National Center for Science Education 1342:Mann serves on the advisory board of 1201:National Center for Science Education 1180:In September 2013, Mann was named by 1031:with 26 other organizations filed an 639:Geophysical Fluid Dynamics Laboratory 298:The Hockey Stick and the Climate Wars 5649: 5612:IEEE Technology and Society Magazine 5406: 5380: 5248:Craig, Patricia (October 15, 2021). 4651: 4592: 4405: 4225: 3974: 3371:"Academy affirms hockey-stick graph" 3190: 3044: 2988: 2901: 2811: 2756: 2744: 2732: 2720: 2636: 2519: 2507: 2235: 2231: 2229: 2227: 2225: 2223: 2221: 2219: 2217: 2215: 2213: 2042: 1896:Mann, Michael; Kump, Lee R. (2008). 1794: 1104:Institute for Scientific Information 1091: 857:United States Department of Commerce 16:American physicist and climatologist 5029:Grant, Miles (September 23, 2013). 5022: 4756: 4132:(story originally published by the 3570:Carrington, Damian (May 20, 2014). 2440:American Environmental Leaders: M–Z 2437:Anne Becher; Joseph Richey (2008). 1412:(NOAA) and four more funded by the 1118:Association of American Geographers 795:More than two dozen reconstructions 773:Controversy over hockey stick graph 491:University of Massachusetts Amherst 13: 5786:People from Amherst, Massachusetts 4880:"Nobel Prize Comes to Geosciences" 4386:Seth Shulman (February 12, 2014). 3907:Rubin, Rebecca (October 6, 2010). 2479:MichaelEMann (February 13, 2018). 2307: 2001:"A preview of The Madhouse Effect" 1300: 746:evaluate the Southern Hemisphere. 704:southern oscillations and related 495:United States Department of Energy 461:. Mann defended his PhD thesis on 347:University of California, Berkeley 240:Third Scientific Assessment Report 74:University of California, Berkeley 14: 5862: 5719:. EPA Ireland. November 18, 2021. 5675: 4652:Noor, Dharna (January 17, 2024). 4593:Cole, Devan (November 25, 2019). 4487:Third in the list in the notice, 4360:Timmer, John (January 26, 2014). 4200:Timmer, John (October 26, 2012). 3975:Mann, Michael (October 8, 2010). 3706:The Pennsylvania State University 3673:The Pennsylvania State University 3418:Warner, Frank (January 3, 2010). 2880:The Chronicle of Higher Education 2210: 1797:Bulletin of the Atomic Scientists 938:Frontier Centre for Public Policy 755:Atlantic Multidecadal Oscillation 714:coupled ocean-atmosphere modeling 415:Atlantic multidecadal oscillation 395:in simulating the period of peak 378:in physics, and received both an 366:Doctoral and postgraduate studies 333:Early life, undergraduate studies 5851:20th-century American physicists 5796:21st-century American physicists 5599: 5541: 5507: 5482: 5456: 5426: 5400: 5374: 5307: 5286: 5260: 5241: 5210: 5192: 5174: 5156: 5131: 5048: 4332:Sheppard, Kate (July 24, 2013). 4115:McIntosh, Emma (June 16, 2019). 4045:Greer, Darryl (March 28, 2011). 3068: 2158: 2144: 2025:The Tantrum That Saved The World 2022:—; Herbert, Megan (2018). 1438: 1297:named Mann as a Foreign Member 965:Competitive Enterprise Institute 847:, who has called the science of 838:Competitive Enterprise Institute 584:in an unusually warm year. In a 311:The Tantrum That Saved the World 301:(2012), together with co-author 5684:, Pennsylvania State University 5587:. Pennsylvania State University 5557:. July 27, 2018. Archived from 5407:Orso, Anna (January 30, 2014). 5274:. American Humanist Association 4944: 4930:American Meteorological Society 4871: 4828: 4779: 4698: 4668: 4632: 4616: 4586: 4556: 4520: 4494: 4489:Mann v. National Review, et al. 4462: 4459:has been published by the RCFP. 4431: 4325: 4271: 4226:Orso, Anna (January 31, 2014). 4173:"A Change in the Legal Climate" 4038: 4010: 3921: 3867: 3849: 3825:Walker, Julian (May 19, 2010). 3764: 3754: 3728: 3563: 3537: 3308: 3214: 3184: 3034:Mann, Bradley & Hughes 2000 3027: 2994: 2982: 2907: 2895: 2817: 2805: 2762: 2750: 2738: 2726: 2714: 2678: 2630: 2611:U.S. Government Printing Office 2596: 2534:Journal of Geophysical Research 2513: 2501: 2472: 2457: 2320:. National Academy of Sciences. 1392: 1242:Committee for Skeptical Inquiry 1224:Commonwealth Club of California 1171:American Meteorological Society 865:Office of the Inspector General 539:instrumental temperature record 286:Committee for Skeptical Inquiry 278:American Meteorological Society 4306:Timmer, John (July 22, 2013). 3928:Kumar, Anita (March 2, 2012). 3675:. June 4, 2010. Archived from 3463:; Wilson, Rob (May 14, 2010). 3013:. Cambridge University Press. 2338: 2324: 2281: 2255: 1948:—; Kump, Lee R. (2015). 1465:Mann, M.E.; Lees J.M. (1996). 1348:home front during World War II 1: 5254:Pennsylvania State University 2525:Mann, M.E.; Park, J. (1994). 2468:Mathematics Genealogy Project 2179: 1688:—; Jones, P.D. (2003). 1324:, and others, co-founded the 1288:American Humanist Association 1281:Leo Szilard Lectureship Award 1022:Union of Concerned Scientists 896:Union of Concerned Scientists 830:Southeastern Legal Foundation 710:attribution of climate change 664:Pennsylvania State University 451:IPCC Second Assessment Report 167:Pennsylvania State University 5821:21st-century science writers 5035:National Wildlife Federation 4852:retrieved December 12, 2012. 4629:. Retrieved March 23, 2021. 4149:Michael Mann v. Timothy Ball 3153:Geophysical Research Letters 2920:Geophysical Research Letters 2198:. American Geophysical Union 1982:—; Toles, Tom (2016). 1697:Geophysical Research Letters 1571:Geophysical Research Letters 1399:National Academy of Sciences 1270:National Academy of Sciences 1194:National Wildlife Federation 1131:Geophysical Research Letters 779:IPCC Third Assessment Report 725:principal component analysis 685:IPCC Third Assessment Report 679:IPCC Third Assessment Report 626:Geophysical Research Letters 534:principal component analysis 440:Centuries" was published by 256:National Academy of Sciences 195:(born 1965) is an American 129:National Academy of Sciences 97:IPCC Third Assessment Report 7: 4857:"Timeline Photos: Facebook" 4675:DeSmog (January 19, 2024). 4622:NR Staff (March 19, 2021). 3782:Office of Inspector General 3779:National Science Foundation 2723:, pp. 1–2, 41, 265–266 2522:, pp. 1–2, 6–10, 28–30 2137: 1414:National Science Foundation 1276:Sustainability Foundation. 869:National Science Foundation 694: 360:yttrium barium copper oxide 343:University of Massachusetts 309:(2016) with Megan Herbert, 50:1965 (age 58–59) 10: 5867: 5826:American climate activists 5643: 5334:"Welcome climate bloggers" 5268:"Annual Humanist Awardees" 3994:Sykes, Ed (July 1, 2013). 3602:. BBC News. August 6, 2010 3369:Brumfiel, G. (June 2006). 3247:10.1038/s41467-019-13823-w 2847:10.1191/095968398667194956 2383:European Geosciences Union 1971:Dorling Kindersley Limited 1256:American Geophysical Union 1254:On September 4, 2018, the 1247:On February 14, 2018, the 1169:Following election by the 1163:European Geosciences Union 1155:American Geophysical Union 1126:American Geophysical Union 1102:won him an award from the 969:Jerry Sandusky sex scandal 878: 843:At the request of Senator 673:University of Pennsylvania 280:and awarded the status of 274:European Geosciences Union 266:American Geophysical Union 205:University of Pennsylvania 163:University of Pennsylvania 107:American Geophysical Union 5658:Columbia University Press 5606:Wunsch, A. David (2019). 4642:Retrieved March 23, 2021. 2481:"MichaelEMann on Twitter" 2236:Mann, Michael E. (2022). 1931:Columbia University Press 1236:On February 8, 2018, the 1213:American Physical Society 1047:The defendants filed for 811:University of East Anglia 741:In August 2003 Mann with 648: 180: 176: 158: 148: 141: 102: 83: 69: 61: 42: 30: 23: 5703:journalist listing site 5625:10.1109/MTS.2019.2934588 5438:The Climate Mobilization 5206:. Penn State University. 5188:. Penn State University. 4744:. London, United Kingdom 3772:"Case Number: A09120086" 3338:National Academies Press 2412:www.centerforinquiry.net 2196:"Fellows Search Results" 1889: 1817:10.1177/0096340214563674 1426:Office of Naval Research 1344:The Climate Mobilization 917:successful 2013 campaign 736:expectation–maximization 580:release of the paper on 501:and Bradley's colleague 388:condensed matter physics 374:, intending to obtain a 5746:American climatologists 5063:. Penn State University 4285:The Wall Street Journal 4051:Courthouse News Service 3132:. Penn State University 3077:. Penn State University 3047:, pp. 104–105, 306 2295:. Penn State University 2269:. Penn State University 1769:10.1073/pnas.0901303106 1655:10.1126/science.1064363 1199:On April 28, 2014, the 1175:distinguished professor 849:man-made climate change 393:postdoctoral researcher 282:distinguished professor 5791:Environmental bloggers 5781:Yale University alumni 5650:Mann, Michael (2012). 4787:2007 Nobel Peace Prize 4471:"Representative Cases" 4265:legaltimes.typepad.com 2028:. World Saving Books. 1313: 1190:climate change deniers 1144:2007 Nobel Peace Prize 807:Climatic Research Unit 660:University of Virginia 482: 339:Amherst, Massachusetts 245:2007 Nobel Peace Prize 171:University of Virginia 54:Amherst, Massachusetts 5444:on September 12, 2016 4469:Kornstein, Daniel J. 4079: (BCSC 2011). 3227:Nature Communications 3057:Mann & Jones 2003 2352:. Stanford University 2166:Global warming portal 2152:Earth sciences portal 1748:Proc. Natl. Acad. Sci 1432:Selected publications 1308: 1293:In 2024, The British 949:CRU email controversy 801:CRU email controversy 759:Global warming hiatus 555:Year Without a Summer 511:University of Arizona 476: 408:. He worked with the 5470:. September 19, 2014 5315:"RealClimate: About" 4717:on February 10, 2024 3804:Institute of Physics 3715:on February 15, 2010 3517:(February 9, 2010). 3288:(February 9, 2010). 3174:10.1002/2014GL059233 2941:10.1029/1999GL900070 2540:(D12): 25819–25833. 1952:(2nd ed.). DK. 1727:10.1029/2003GL017814 1592:10.1029/1999GL900070 1418:Department of Energy 921:governor of Virginia 654:University positions 618:fertilisation effect 406:climate oscillations 268:and was awarded the 5811:Paleoclimatologists 5350:2004Natur.432Q.933. 5344:(7020): 933. 2004. 4958:on January 27, 2013 4568:williamslopatto.com 4508:. December 22, 2016 3981:The Washington Post 3935:The Washington Post 3861:The Washington Post 3831:The Virginian-Pilot 3550:Scientific American 3483:2010WIRCC...1..507F 3387:2006Natur.441.1032B 3239:2020NatCo..11...49M 3165:2014GeoRL..41.3211M 3071:"Research Findings" 2932:1999GeoRL..26..759M 2839:1998Holoc...8..455J 2783:1998Natur.392..779M 2656:1995Natur.378..266M 2574:1994Natur.367..723S 2546:1994JGR....9925819M 2418:on February 8, 2018 2318:"2020 NAS Election" 2110:, January 17, 2014. 2098:, January 31, 2014. 1856:2017NatSR...745242M 1809:2015BuAtS..71a..33M 1760:2009PNAS..106.4065M 1709:2003GeoRL..30.1820M 1647:2001Sci...294.2149S 1641:(5549): 2149–2152. 1583:1999GeoRL..26..759M 1542:1998Natur.392..779M 1483:1996ClCh...33..409M 1159:Hans Oeschger Medal 1146:to the IPCC and to 1113:Scientific American 984:Mann asked CEI and 927:Defamation lawsuits 904:The Washington Post 522:Northern Hemisphere 370:Mann then attended 316:The New Climate War 270:Hans Oeschger Medal 261:Scientific American 112:Hans Oeschger Medal 95:Lead author on the 5529:on August 10, 2013 5515:"Advisory Council" 5387:The New York Times 5321:. December 1, 2004 4024:The Daily Progress 3914:The Cavalier Daily 3863:. August 31, 2010. 3324:The New York Times 2613:. pp. 765–766 2443:. Grey House Pub. 2350:earth.stanford.edu 2238:"Curriculum Vitae" 2107:The New York Times 1839:Scientific Reports 1803:(1). Sage: 33–45. 1508:on August 17, 2011 1491:10.1007/BF00142586 1448:has a profile for 1404:Journal of Climate 1314: 1238:Center for Inquiry 1218:On June 19, 2017, 1122:Journal of Climate 1055:U.S. Supreme Court 1037:D.C. appeals court 499:Raymond S. Bradley 483: 446:in November 1995. 437:Raymond S. Bradley 430:Arthur P. Dempster 355:Monte Carlo method 321:Our Fragile Moment 232:hockey stick graph 224:Raymond S. Bradley 92:Hockey stick graph 5841:American skeptics 5667:978-0-231-15254-9 5272:American Humanist 4987:Bloomberg Markets 4769:"Michael E. Mann" 4419:. August 11, 2014 4135:National Observer 3806:. August 30, 2011 3682:on July 13, 2010. 3432:on March 31, 2010 3355:978-0-309-10225-4 3318:(June 22, 2006). 3316:Revkin, Andrew C. 3075:www.meteo.psu.edu 3069:Mann, Michael E. 3020:978-0-521-80767-8 2777:(6678): 779–787. 2650:(6554): 266–270. 2568:(6465): 723–726. 2554:10.1029/94JD02396 2450:978-1-59237-119-8 2092:by Michael Mann, 2071:. PublicAffairs. 2060:978-1-541-75822-3 2035:978-90-828110-0-1 1993:978-0-231-17786-3 1969:by permission of 1959:978-1-4654-3364-0 1940:978-0-231-15254-9 1915:978-0-7566-3995-2 1864:10.1038/srep45242 1754:(11): 4065–4066. 1703:(15): 1820–1823. 1618:978-0-521-62138-0 1536:(6678): 779–787. 1454: 1316:Mann, along with 1182:Bloomberg Markets 1092:Awards and honors 1002:DC Superior Court 1000:lawsuit with the 853:Inspector General 788:published by the 606:sensitivity tests 530:dendroclimatology 505:, a Professor of 503:Malcolm K. Hughes 455:Accuracy in Media 228:Malcolm K. Hughes 193:Michael Evan Mann 190: 189: 143:Scientific career 47:Michael Evan Mann 5858: 5816:Science bloggers 5732: 5720: 5708: 5682:Mann's home page 5671: 5638: 5637: 5627: 5603: 5597: 5596: 5594: 5592: 5577: 5571: 5570: 5568: 5566: 5561:on July 29, 2018 5545: 5539: 5538: 5536: 5534: 5525:. Archived from 5511: 5505: 5504: 5502: 5500: 5486: 5480: 5479: 5477: 5475: 5460: 5454: 5453: 5451: 5449: 5440:. Archived from 5434:"Advisory Board" 5430: 5424: 5423: 5421: 5419: 5413:The Patriot-News 5404: 5398: 5397: 5395: 5393: 5378: 5372: 5371: 5361: 5330: 5328: 5326: 5311: 5305: 5304: 5302: 5300: 5290: 5284: 5283: 5281: 5279: 5264: 5258: 5257: 5245: 5239: 5238: 5236: 5234: 5214: 5208: 5207: 5196: 5190: 5189: 5178: 5172: 5171: 5160: 5154: 5153: 5151: 5149: 5135: 5129: 5128: 5126: 5124: 5109: 5103: 5102: 5100: 5098: 5093:. 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Archived from 4702: 4696: 4695: 4689: 4687: 4672: 4666: 4665: 4649: 4643: 4636: 4630: 4620: 4614: 4613: 4611: 4609: 4590: 4584: 4579: 4577: 4575: 4560: 4554: 4553: 4551: 4549: 4544:on July 13, 2017 4543: 4532: 4524: 4518: 4517: 4515: 4513: 4498: 4492: 4486: 4484: 4482: 4466: 4460: 4455: 4453: 4451: 4435: 4429: 4428: 4426: 4424: 4409: 4403: 4402: 4400: 4398: 4383: 4377: 4376: 4374: 4372: 4357: 4351: 4350: 4348: 4346: 4329: 4323: 4322: 4320: 4318: 4303: 4297: 4296: 4294: 4292: 4275: 4269: 4268: 4262: 4254: 4245: 4244: 4242: 4240: 4233:The Patriot-News 4223: 4217: 4216: 4214: 4212: 4197: 4188: 4187: 4185: 4183: 4168: 4157: 4151: 4145: 4139: 4131: 4129: 4127: 4112: 4106: 4105: 4103: 4101: 4086: 4080: 4074: 4068: 4062: 4061: 4059: 4057: 4042: 4036: 4035: 4033: 4031: 4014: 4008: 4007: 4005: 4003: 3991: 3985: 3984: 3972: 3966: 3965: 3963: 3961: 3946: 3944: 3942: 3925: 3919: 3918: 3904: 3898: 3897: 3895: 3893: 3888:on July 16, 2011 3884:. Archived from 3871: 3865: 3864: 3853: 3847: 3846: 3844: 3842: 3833:. Archived from 3822: 3816: 3815: 3813: 3811: 3800:physicsworld.com 3792: 3786: 3785: 3776: 3768: 3762: 3758: 3752: 3751: 3749: 3747: 3732: 3726: 3724: 3722: 3720: 3714: 3708:. Archived from 3702:research.psu.edu 3699: 3690: 3684: 3683: 3681: 3666: 3658: 3647: 3646: 3644: 3642: 3623: 3612: 3611: 3609: 3607: 3596: 3587: 3586: 3584: 3582: 3567: 3561: 3560: 3558: 3556: 3541: 3535: 3534: 3532: 3530: 3511: 3505: 3504: 3494: 3452: 3446: 3445: 3439: 3437: 3428:. Archived from 3425:The Morning Call 3415: 3409: 3408: 3398: 3396:10.1038/4411032a 3381:(7097): 1032–3. 3366: 3360: 3359: 3327: 3312: 3306: 3305: 3303: 3301: 3282: 3276: 3275: 3273: 3271: 3258: 3218: 3212: 3211: 3209: 3207: 3192:Mann, Michael E. 3188: 3182: 3178: 3176: 3159:(9): 3211–3219. 3150: 3141: 3139: 3137: 3121: 3115: 3114: 3112: 3110: 3093: 3087: 3086: 3084: 3082: 3066: 3060: 3054: 3048: 3042: 3036: 3031: 3025: 3024: 3012: 2998: 2992: 2986: 2980: 2979: 2977: 2975: 2970:on June 29, 2011 2952: 2946: 2945: 2943: 2911: 2905: 2904:, pp. 50–53 2899: 2893: 2892: 2890: 2888: 2870: 2859: 2858: 2821: 2815: 2814:, pp. 48–50 2809: 2803: 2802: 2766: 2760: 2754: 2748: 2747:, pp. 40–48 2742: 2736: 2735:, pp. 41–42 2730: 2724: 2718: 2712: 2711: 2682: 2676: 2675: 2664:10.1038/378266a0 2639:, pp. 30–34 2634: 2628: 2622: 2620: 2618: 2600: 2594: 2593: 2582:10.1038/367723a0 2557: 2531: 2517: 2511: 2505: 2499: 2498: 2493: 2491: 2476: 2470: 2464:Lawrence N. Mann 2461: 2455: 2454: 2434: 2428: 2427: 2425: 2423: 2414:. Archived from 2404: 2395: 2394: 2392: 2390: 2371: 2362: 2361: 2359: 2357: 2342: 2336: 2335: 2328: 2322: 2321: 2314: 2305: 2304: 2302: 2300: 2285: 2279: 2278: 2276: 2274: 2259: 2253: 2252: 2250: 2248: 2242: 2233: 2208: 2207: 2205: 2203: 2192: 2168: 2163: 2162: 2154: 2149: 2148: 2147: 2132: 2130: 2128: 2064: 2043:— (2021). 2039: 2017: 2015: 2013: 1997: 1963: 1944: 1923:— (2012). 1919: 1903: 1885: 1875: 1828: 1791: 1781: 1771: 1742:— (2009). 1738: 1720: 1694: 1684: 1666: 1664:2060/20020049982 1632: 1622: 1606: 1596: 1594: 1561: 1527: 1517: 1515: 1513: 1507: 1501:. Archived from 1452: 1451:Michael E. Mann 1442: 1441: 1335:The Patriot-News 1322:Stefan Rahmstorf 1157:and awarded the 1086:protected speech 1083: 955:Lawsuit against 643:Jerry D. Mahlman 641:, climatologist 573:solar irradiance 507:Dendrochronology 489:research at the 487:paleoclimatology 35: 21: 20: 5866: 5865: 5861: 5860: 5859: 5857: 5856: 5855: 5736: 5735: 5723: 5711: 5697:Michael E. Mann 5688:Michael E. Mann 5678: 5668: 5646: 5641: 5604: 5600: 5590: 5588: 5579: 5578: 5574: 5564: 5562: 5547: 5546: 5542: 5532: 5530: 5513: 5512: 5508: 5498: 5496: 5494:Climate Central 5488: 5487: 5483: 5473: 5471: 5462: 5461: 5457: 5447: 5445: 5432: 5431: 5427: 5417: 5415: 5405: 5401: 5391: 5389: 5379: 5375: 5359:10.1038/432933a 5332: 5331: 5324: 5322: 5313: 5312: 5308: 5298: 5296: 5292: 5291: 5287: 5277: 5275: 5266: 5265: 5261: 5246: 5242: 5232: 5230: 5223:Penn State News 5215: 5211: 5198: 5197: 5193: 5180: 5179: 5175: 5162: 5161: 5157: 5147: 5145: 5137: 5136: 5132: 5122: 5120: 5119:. June 19, 2017 5111: 5110: 5106: 5096: 5094: 5081: 5080: 5076: 5066: 5064: 5053: 5049: 5039: 5037: 5027: 5023: 5013: 5011: 5006: 5005: 5001: 4991: 4989: 4975: 4971: 4961: 4959: 4950: 4949: 4945: 4935: 4933: 4925: 4921: 4920: 4913: 4911: 4906: 4905: 4901: 4891: 4889: 4882: 4876: 4872: 4862: 4860: 4854: 4853: 4841: 4839: 4834: 4833: 4829: 4815: 4813: 4812:on May 25, 2015 4809: 4802: 4798: 4797: 4793: 4784: 4780: 4767: 4766: 4757: 4747: 4745: 4734: 4730: 4720: 4718: 4703: 4699: 4685: 4683: 4673: 4669: 4650: 4646: 4637: 4633: 4627:National Review 4621: 4617: 4607: 4605: 4591: 4587: 4573: 4571: 4562: 4561: 4557: 4547: 4545: 4541: 4530: 4526: 4525: 4521: 4511: 4509: 4500: 4499: 4495: 4480: 4478: 4467: 4463: 4449: 4447: 4436: 4432: 4422: 4420: 4411: 4410: 4406: 4396: 4394: 4384: 4380: 4370: 4368: 4358: 4354: 4344: 4342: 4330: 4326: 4316: 4314: 4304: 4300: 4290: 4288: 4276: 4272: 4260: 4256: 4255: 4248: 4238: 4236: 4224: 4220: 4210: 4208: 4198: 4191: 4181: 4179: 4169: 4160: 4147: 4146: 4142: 4125: 4123: 4113: 4109: 4099: 4097: 4096:on June 9, 2019 4088: 4087: 4083: 4070: 4069: 4065: 4055: 4053: 4043: 4039: 4029: 4027: 4015: 4011: 4001: 3999: 3992: 3988: 3973: 3969: 3959: 3957: 3947: 3940: 3938: 3926: 3922: 3905: 3901: 3891: 3889: 3872: 3868: 3855: 3854: 3850: 3840: 3838: 3837:on July 3, 2010 3823: 3819: 3809: 3807: 3794: 3793: 3789: 3774: 3770: 3769: 3765: 3759: 3755: 3745: 3743: 3734: 3733: 3729: 3718: 3716: 3712: 3697: 3691: 3687: 3679: 3664: 3660: 3659: 3650: 3640: 3638: 3624: 3615: 3605: 3603: 3598: 3597: 3590: 3580: 3578: 3568: 3564: 3554: 3552: 3542: 3538: 3528: 3526: 3512: 3508: 3461:Zorita, Eduardo 3453: 3449: 3435: 3433: 3416: 3412: 3367: 3363: 3356: 3328: 3313: 3309: 3299: 3297: 3283: 3279: 3269: 3267: 3219: 3215: 3205: 3203: 3194:(May 7, 2018). 3189: 3185: 3148: 3135: 3133: 3122: 3118: 3108: 3106: 3094: 3090: 3080: 3078: 3067: 3063: 3055: 3051: 3043: 3039: 3032: 3028: 3021: 2999: 2995: 2987: 2983: 2973: 2971: 2954: 2953: 2949: 2912: 2908: 2900: 2896: 2886: 2884: 2871: 2862: 2822: 2818: 2810: 2806: 2767: 2763: 2755: 2751: 2743: 2739: 2731: 2727: 2719: 2715: 2700: 2690:Yale University 2684: 2683: 2679: 2640: 2635: 2631: 2616: 2614: 2601: 2597: 2558: 2529: 2523: 2518: 2514: 2506: 2502: 2489: 2487: 2477: 2473: 2462: 2458: 2451: 2435: 2431: 2421: 2419: 2406: 2405: 2398: 2388: 2386: 2373: 2372: 2365: 2355: 2353: 2344: 2343: 2339: 2330: 2329: 2325: 2316: 2315: 2308: 2298: 2296: 2287: 2286: 2282: 2272: 2270: 2261: 2260: 2256: 2246: 2244: 2240: 2234: 2211: 2201: 2199: 2194: 2193: 2186: 2182: 2174:Extreme weather 2164: 2157: 2150: 2145: 2143: 2140: 2135: 2126: 2124: 2123:. April 8, 2017 2113: 2086: 2061: 2036: 2011: 2009: 1999: 1994: 1960: 1941: 1922: 1916: 1892: 1848:Springer Nature 1718:10.1.1.408.3837 1692: 1630: 1619: 1604: 1525: 1511: 1509: 1505: 1471:Climatic Change 1460: 1459: 1458: 1443: 1439: 1434: 1395: 1371:extreme weather 1357:Climate Central 1303: 1301:Public outreach 1094: 1081: 1075:National Review 1071:National Review 1041:First Amendment 1018:National Review 1009:National Review 990:National Review 986:National Review 974:National Review 957:National Review 929: 913:Terry McAuliffe 883: 877: 803: 775: 706:teleconnections 697: 681: 656: 651: 615: 471: 372:Yale University 368: 351:liquid crystals 335: 185:michaelmann.net 133:Foreign Member 132: 126: 124: 122: 115: 110: 94: 90: 78:Yale University 70:Alma mater 57: 51: 49: 48: 38: 26: 25:Michael E. Mann 17: 12: 11: 5: 5864: 5854: 5853: 5848: 5843: 5838: 5833: 5828: 5823: 5818: 5813: 5808: 5803: 5798: 5793: 5788: 5783: 5778: 5773: 5768: 5763: 5758: 5753: 5748: 5734: 5733: 5721: 5709: 5694: 5685: 5677: 5676:External links 5674: 5673: 5672: 5666: 5645: 5642: 5640: 5639: 5598: 5572: 5540: 5506: 5481: 5455: 5425: 5399: 5373: 5306: 5285: 5259: 5240: 5209: 5191: 5173: 5155: 5130: 5104: 5074: 5047: 5021: 4999: 4969: 4943: 4899: 4870: 4827: 4791: 4778: 4755: 4728: 4711:New York Times 4697: 4667: 4644: 4631: 4615: 4585: 4555: 4519: 4493: 4461: 4430: 4404: 4378: 4352: 4324: 4298: 4270: 4246: 4218: 4189: 4158: 4140: 4107: 4081: 4063: 4037: 4009: 3986: 3967: 3920: 3899: 3881:C-Ville Weekly 3866: 3848: 3817: 3787: 3763: 3753: 3727: 3685: 3648: 3613: 3588: 3562: 3536: 3506: 3492:10.1002/wcc.53 3477:(4): 507–516. 3455:Frank, David; 3447: 3410: 3361: 3354: 3346:10.17226/11676 3307: 3277: 3213: 3183: 3116: 3088: 3061: 3049: 3037: 3026: 3019: 2993: 2981: 2947: 2926:(6): 759–762. 2906: 2894: 2860: 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Retrieved 1503:the original 1474: 1470: 1450: 1402: 1396: 1393:Publications 1368: 1361: 1341: 1333: 1330: 1315: 1292: 1286:In 2023 the 1285: 1278: 1267: 1260: 1253: 1246: 1235: 1228: 1217: 1198: 1179: 1168: 1152: 1136: 1129: 1121: 1111: 1097: 1095: 1079: 1074: 1070: 1068: 1059:Samuel Alito 1048: 1046: 1033:amicus brief 1026: 1017: 1008: 1006: 989: 985: 983: 972: 962: 956: 943:interviewed 935: 910: 902: 900: 889:initiated a 884: 851:a hoax, the 842: 827: 823: 804: 786:North Report 783: 776: 767: 763: 752: 748: 740: 729:multivariate 722: 698: 689: 682: 657: 630: 624: 622: 594: 590:John Roberts 566: 548: 519: 493:funded by a 484: 462: 448: 441: 434: 419: 410:seismologist 399:warmth when 369: 336: 324: 320: 319:(2021), and 314: 310: 306: 296: 292: 290: 259: 253: 221: 201:geophysicist 192: 191: 159:Institutions 142: 37:Mann in 2019 18: 5756:1965 births 5565:October 31, 5533:October 30, 5418:February 9, 5392:January 15, 5319:RealClimate 5148:January 17, 5117:Climate One 4962:January 25, 4936:October 28, 4914:November 4, 4892:October 28, 4863:October 28, 4842:November 2, 4686:January 20, 4564:"Decisions" 4444:FoxNews.com 4392:LiveScience 3719:February 7, 2485:twitter.com 2422:February 8, 2202:October 25, 1975:Pearson plc 1326:RealClimate 1220:Climate One 1186:RealClimate 733:regularized 718:time series 588:interview, 559:uncertainty 426:Grace Wahba 326:RealClimate 153:Climatology 5740:Categories 5448:August 30, 4859:. facebook 4816:January 2, 4773:PSU People 4548:August 21, 4446:. 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Index


Amherst, Massachusetts
University of California, Berkeley
Yale University
Temperature record of the past 1000 years
Hockey stick graph
IPCC Third Assessment Report
American Geophysical Union
Hans Oeschger Medal
AAAS

National Academy of Sciences
Royal Society
Climatology
University of Pennsylvania
Pennsylvania State University
University of Virginia
michaelmann.net
climatologist
geophysicist
University of Pennsylvania
climate change
temperature record of the past thousand years
noisy data
Raymond S. Bradley
Malcolm K. Hughes
hockey stick graph
Intergovernmental Panel on Climate Change
Third Scientific Assessment Report
2007 Nobel Peace Prize

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