Questions Surrounding the 'hockey Stick' Temperature Studies: Implications for Climate Change Assessments : Hearings Before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Ninth Congress, Second Session, July 19 and July 27, 2006U.S. Government Printing Office, 2006 - 872 pages |
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Page 2
... Bradley and Dr. Malcolm Hughes , introduced a new technique to develop more quantitative estimates of the nature of climate change since 1000 A.D. and concluded that the late 20th Century was the warmest in 1,000 years , that the ...
... Bradley and Dr. Malcolm Hughes , introduced a new technique to develop more quantitative estimates of the nature of climate change since 1000 A.D. and concluded that the late 20th Century was the warmest in 1,000 years , that the ...
Page 36
... Bradley's book on paleoclimatology , and sort of indicates the kind of things that are used as proxy data in paleoclimatology . One thing I would like to point out in particular that is important I think for understanding this area is ...
... Bradley's book on paleoclimatology , and sort of indicates the kind of things that are used as proxy data in paleoclimatology . One thing I would like to point out in particular that is important I think for understanding this area is ...
Page 45
... Bradley , Hughes , Briffa , Rutherford and Osborn . DR . MANN Shende Rind Schmin Me D'Ag Jacoby Cook. Mann - Rutherford - Jones - Osborn - Briffa - Bradley - Hughes. 45.
... Bradley , Hughes , Briffa , Rutherford and Osborn . DR . MANN Shende Rind Schmin Me D'Ag Jacoby Cook. Mann - Rutherford - Jones - Osborn - Briffa - Bradley - Hughes. 45.
Page 46
... BRADLEY , HUGHES , Mann Co - Author K - 9 mflower Jones Bradley BRIFFA , Hughes Brieford Folland RUTHERFORD , Knight Vesings OSBORN Abarbanel FIGURE 7 Because of these close connections , independent studies may not be as independent as ...
... BRADLEY , HUGHES , Mann Co - Author K - 9 mflower Jones Bradley BRIFFA , Hughes Brieford Folland RUTHERFORD , Knight Vesings OSBORN Abarbanel FIGURE 7 Because of these close connections , independent studies may not be as independent as ...
Page 47
... Bradley & Jones ( 1993 ) Polar Urals Tometrask Jacoby Mongolian Jacoby treeline Bristlecone / foxtails ( PC1 ) Dunde ... Bradley , Hughes ( 1998,1999 ) Jones et al . ( 1998 ) Crowley & Lowery ( 2000 ) Briffa ( 2000 ) Esper ( 2002 ) Mann ...
... Bradley & Jones ( 1993 ) Polar Urals Tometrask Jacoby Mongolian Jacoby treeline Bristlecone / foxtails ( PC1 ) Dunde ... Bradley , Hughes ( 1998,1999 ) Jones et al . ( 1998 ) Crowley & Lowery ( 2000 ) Briffa ( 2000 ) Esper ( 2002 ) Mann ...
Common terms and phrases
aerosols analysis anthropogenic atmosphere average borehole Briffa bristlecone pine calibration carbon dioxide Center CH-blend CHAIRMAN BARTON Christy climate change climate models climate variability committee conclusions correlation Crowley data set decades Earth eigenvectors emissions energy estimates evidence Figure Geophys global climate global temperature global warming greenhouse gases hearing hockey stick Hughes ice cores increase indicators INSLEE IPCC Jones Journal late 20th century Little Ice Age Mann's McIntyre and McKitrick mean Medieval Warm Period methodology methods Michael Mann multiproxy National Academy natural North Northern Hemisphere Northern Hemisphere temperature ocean paleoclimate paleoclimatology paper peer review Ph.D principal component proxy data questions R.S. Bradley radiative forcing regions replicate response scientific scientists signal significant simulations social network solar statistical Storch studies STUPAK surface temperature reconstructions temperature changes temperature patterns temperature record tree ring tree-ring trend uncertainties University variance variations volcanic warmer WHITFIELD
Popular passages
Page 570 - The scientific understanding of climate change is now sufficiently clear to justify nations taking prompt action. It is vital that all nations identify costeffective steps that they can take now, to contribute to substantial and long-term reduction in net global greenhouse gas emissions.
Page 406 - IPCC assessment report notes that "an increasing body of observations gives a collective picture of a warming world and other changes in the climate system...
Page 756 - The IPCC's conclusion that most of the observed warming of the last 50 years is likely to have been due to the increase in greenhouse gas concentrations accurately reflects the current thinking of the scientific community on this issue.
Page 66 - Climate change' means a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods.
Page 251 - Hemisphere indicate that the increase in temperature in the 20th century is likely to have been the largest of any century during the past 1000 years. It is also likely that, in the Northern Hemisphere, the 1990s was the warmest decade and 1998 the warmest year.
Page 442 - Council, they were responsible for making certain that an independent examination of this report was vn carried out in accordance with institutional procedures and that all review comments were carefully considered. Responsibility for the final content of this report rests entirely with the authoring committee and the institution.
Page 422 - The A2 storyline and scenario family describes a very heterogeneous world. The underlying theme is self-reliance and preservation of local identities. Fertility patterns across regions converge very slowly, which results in continuously increasing population. Economic development is primarily regionally oriented and per capita economic growth and technological change more fragmented and slower than other storylines.
Page 408 - Hence, it is physically plausible to expect that over a short time period (eg, 20 years) there may be differences in temperature trends. In addition, spatial sampling techniques can also explain some of the differences in trends, but these differences are not fully resolved.
Page 66 - The Parties should protect the climate system for the benefit of present and future generations of humankind, on the basis of equity and in accordance with their common but differentiated responsibilities and respective capabilities.
Page 413 - Confidence In the ability of models to project future climate has Increased. Complex physically-based climate models are required to provide detailed estimates of feedbacks and of regional features. Such models cannot yet simulate all aspects of climate (eg, they...