From Wikipedia, the free encyclopedia Nicola Scafetta
Nicola Scafetta
Nicola Scafetta Views on climate change
Fields Physics In "Climate Change and its Causes, a Discussion about
Institutions Duke University some Key Issue" Scafetta claims "At least 60% of the
warming of the Earth observed since 1970 appears to be
Alma mater University of North Texas
induced by natural cycles which are present in the solar
Doctoral advisor Paolo Grigolini system. A climatic stabilization or cooling until 2030-2040
is forecast by the phenomenological model."[7] Using the
Nicola Scafetta is a research scientist at Duke University theory, Scafetta has predicted global temperature
Physics Department. His research interests are in the- changes up to the year 2100. This theory is disputed.[8]
oretical and applied statistics and nonlinear models of These claims are not accepted in the scientific main-
complex processes. He has published peer-reviewed pa- stream.[9]
pers in journals covering a wide variety of disciplines, In 2009, Scafetta faced criticism for failing to disclose
including astronomy, biology, climatology, economics, the computer code required to reproduce his re-
medicine, physics and sociology. search.[10]
Education Selected publications
Scafetta was born in Italy. He graduated at the Universita’ • Nicola Scafetta, Patti Hamilton and Paolo Grigolini,
di Pisa and got a PhD in Physics from the University of “The thermodynamics of social process: the teen
North Texas.[1] birth phenomenon,” Fractals, 9, 193-208 (2001). [1]
• Nicola Scafetta, Sergio Picozzi and Bruce J. West, “An
Collaborations out-of-equilibrium model of the distributions of
wealth” Quantitative Finance 4, 353-364 (2004)." [2]
Scafetta is a collaborator with Active Cavity Radiometer • Nicola Scafetta and Bruce J. West, “Multiresolution
Irradiance Monitor (ACRIM) which monitors total solar diffusion entropy analysis of time series: an
irradiance (TSI) as measured by the ACRIM satellite.[2] application to births to teenagers in Texas” Chaos,
Scafetta was involved in the scientific controversy be- Solitons & Fractals 20, 119 (2004). [3]
tween ACRIM and PMOD. PMOD analysis showed no up- • Nicola Scafetta, and Paolo Grigolini, “Scaling
ward trend in TSI from 1980-2000. In Scafette’s view, the detection in time series: diffusion entropy analysis,”
PMOD analysis was based on altering the published data Phys. Rev. E 66, 036130 (2002)."[4]
from ACRIM and NIMBUS7 and the ACRIM and NIMBUS7 • Nicola Scafetta, Richard Moon, and Bruce J. West,
investigating teams rejected the PMOD adjustments as “Fractal Response of Physiological Signals to Stress
"arbitrary.". But Duffy, Wigley and Santer argue that Conditions, Environmental Changes and
Scafetta’s interpretation makes the climate... mysteriously Neurodegenerative Diseases,” Complexity 12, 12-17
hypersensitive to solar variations[3] (2007). [5]
• Nicola Scafetta, and Bruce J. West,
Contributions to science “Phenomenological reconstructions of the solar
signature in the NH surface temperature records
Scafetta developed Diffusion Entropy Analysis, a method since 1600.” J. Geophys. Res., 112, D24S03,
of statistical analysis which distinguishes between Levy doi:10.1029/2007JD008437 (2007). [6]
Walk noises and Fractal Brownian Motion in complex • N. Scafetta, “Empirical analysis of the solar
systems.[4] Scafetta’s research first made news in 2002 re- contribution to global mean air surface temperature
garding his analysis of teen pregnancy.[5] Scafetta used change,” Journal of Atmospheric and Solar-
this method to publish a number of peer-reviewed arti- Terrestrial Physics 71, 1916–1923 (2009), doi:10.1016/
cles in a wide variety of scientific disciplines, research- j.jastp.2009.07.007. [7]
ing subjects as diverse as teen pregnancy, distribution of • Nicola Scafetta and Richard Willson, “ACRIM-gap and
wealth, human gait, earthquakes and DNA. A number of Total Solar Irradiance (TSI) trend issue resolved
books have been published using and explaining Diffu- using a surface magnetic flux TSI proxy model”,
sion Entropy Analysis.[6]
1
From Wikipedia, the free encyclopedia Nicola Scafetta
Geophysical Research Letter 36, L05701, doi:10.1029/ [10] http://www.newscientist.com/article/
2008GL036307 (2009). [8] dn18307-sceptical-climate-researcher-wont-
• Craig Loehle and Nicola Scafetta, "Climate Change divulge-key-program.html
Attribution Using Empirical Decomposition of
Climatic Data," The Open Atmospheric Science
Journal, 2011 , 74-86. Full text
See also
• Loehle & Scafetta Supplemental Info • List of scientists opposing global warming consensus
Notes External links
[1] Scafetta Dissertation • Duke web page
[2] ACRIM staff • Curriculum Vitae
[3] Interpretations of Climate Change Data • Dissertation
[4] “Scaling detection in time series: diffusion entropy • Climate Change and Its Causes: A Discussion about
analysis” by Nicola Scafetta and Paolo Grigolini Some Key Issues. Presentation to the EPA, February
[5] "A new perspective on teen 2009
pregnancy:Mathematical approach clarifies subtle Persondata
patterns, points way to action" by Sarah Goforth of Name Scafetta, Nicola
Dallas Morning News
[6] Featured Books for "diffusion entropy analysis" Alternative names
[7] Climate Change and its Causes, a Discussion about Short description
some Key Issues Date of birth
[8] Scientists find errors in hypothesis linking solar
Place of birth
flares to global temperature
[9] Climate Change 2001: Working Group I: The Date of death
Scientific Basis p.8 – IPCC Place of death
Retrieved from "http://en.wikipedia.org/w/index.php?title=Nicola_Scafetta&oldid=467202536"
Categories:
• Environmental skepticism
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