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Global Warming: The Science and the Politics
Global Warming: The Science and the Politics

... but the methods for doing so are not universally accepted and have been a source of continuing controversies. Some of the data sets that have been used in recent years are thought by many scientists to be contaminated still by this and other non-climatic effects. It is unfortunate that some scientis ...
(natural & `unnatural`) … Past and Future Risks to Health
(natural & `unnatural`) … Past and Future Risks to Health

... Evidence of a Warming Australia Bureau of Meteorology: '2009 will be remembered for extreme bushfires, dust-storms, lingering rainfall deficiencies, areas of flooding and record-breaking heatwaves.' Australia’s 2009-2010 mean temperature was ~1°C above the 1961-90 average. ...
An adaptability limit to climate change due to heat
An adaptability limit to climate change due to heat

... body temperature would require T w of 34 °C or lower. Taking both of these factors into account, we estimate that the survivability limit for peak six-hourly T W is probably close to 35 °C for humans, though this could be a degree or two off. Similar limits would apply to other mammals but at variou ...
Global Warming
Global Warming

... 4. Why is #3 an important question to find an answer for? ...
Presentation - Copernicus.org
Presentation - Copernicus.org

... Simulations of present climate temperature and precipitation episodes for the Iberian Peninsula M.J. Carvalho, P. Melo-Gonçalves and A. Rocha CESAM and Department of Physics, University of Aveiro Correspond to [email protected] ...
fig-cap
fig-cap

... Figure TS.3. Range of winter and summer temperature and precipitation changes up to the end of the 21st century across recent (fifteen models – red bars) and pre-TAR (seven models – blue bars) AOGCM projections under the SRES A2 emissions scenarios for thirty-two world regions, expressed as rate of ...
Oxygen isotopes as tracers of Mediterranean climate variability
Oxygen isotopes as tracers of Mediterranean climate variability

... • Reconstruction of Mediterranean isotope gradients at important time periods in the past. Abstracts and a longer version of this report are available at: www.geog.plymouth.ac.uk/research/groups/MedCLIVAR_ isotope_workshop.html A selection of the papers will be published in a special issue of Globa ...
Slide 1 - climateknowledge.org
Slide 1 - climateknowledge.org

... • “In the international context, political risk derives from the perceived legitimacy of our actions and the resulting impact on the ability and will of allies and partners to support shared goals. In the domestic context, political risk relates to public support of national strategic priorities and ...
Global warming caused by chlorofluorocarbons, not
Global warming caused by chlorofluorocarbons, not

... Professor Lu said. "We now know that international efforts such as the Montreal Protocol have also had a profound effect on global warming but they must be placed on firmer scientific ground." "This study underlines the importance of understanding the basic science underlying ozone depletion and glo ...
Climate over the Past Millennium or So
Climate over the Past Millennium or So

... Courtesy of E.Cook ...
Scientific Heresy - Watts Up With That?
Scientific Heresy - Watts Up With That?

... I was not always such a ‘lukewarmer’. In the mid 2000s one image in particular played a big role in making me abandon my doubts about dangerous man-made climate change: the hockey stick. It clearly showed that something unprecedented was happening. I can remember where I first saw it at a conference ...
Analysis of winter and summer warming rates in
Analysis of winter and summer warming rates in

... KEY WORDS: Climate change . Seasonal temperature trends ...
Warming - deaconsource
Warming - deaconsource

... With all the attention surrounding carbon dioxide these days, it is easy to forget that there are a number of other important natural and human-driven factors ("forcings" in climate circles) that influence Earth's climate. Among the most important of these are sulfate aerosols, microscopic particles ...
is global warming a threat?
is global warming a threat?

... The math behind the hockey stick shaped graph has been proven wrong by Canadian statisticians Stephen McIntyre and Ross McKitrick. Here are 4 graphs. One is the global warming hockey stick used by the UN and governments around the world to justify Kyoto, the other ones use the same computer program, ...
Document
Document

... Makers on a word-by-word basis. ...
The role of satellite measurements
The role of satellite measurements

... Any temperature record shows interesting variations through time. Scientists are struggling to understand the causes for these variations and it is clear that fluctuations occurring on time scales of years to thousands of years are certainly natural in origin, unrelated to human-induced CO2 warming. ...
Global Warming — Scientific Facts, Problems and
Global Warming — Scientific Facts, Problems and

... records (reconstructions from natural archives) are irreplaceable tools in filling the gaps in our knowledge about long-term climatic changes. However, the paleodata are less accurate and their reliability quite often raises serious doubts. On the other hand, modern climate models include numerous p ...
Global Warming FAQ Overview. Alarm over the prospect of the Earth
Global Warming FAQ Overview. Alarm over the prospect of the Earth

... questions that are at heart economic or political, such as whether the Kyoto Protocol is worthwhile 1. The Science Isn’t there a scientific consensus that global warming is real and bad for us? ...
Global Warming FAQ - Competitive Enterprise Institute
Global Warming FAQ - Competitive Enterprise Institute

... questions that are at heart economic or political, such as whether the Kyoto Protocol is worthwhile 1. The Science Isn’t there a scientific consensus that global warming is real and bad for us? ...
CV - Karen McKinnon
CV - Karen McKinnon

... McKinnon, K.A., A. Poppick, E. Dunn Sigouin, and C. Deser. An ‘Observational Large Ensemble’ to compare observed and modeled temperature trend uncertainty due to internal variability. Under review in Journal of Climate. Deser, C., I. Simpson, K.A. McKinnon, and A. Phillips. The Northern Hemisphere e ...
A Mathematical Model to Compute the Crucial Roles of Water Vapor
A Mathematical Model to Compute the Crucial Roles of Water Vapor

... experiences have confirmed that our world has been getting warmer over the years, slowly at the start of the industrial revolution and appears to be much faster over the past three decades. CO2 is mainly responsible for that, along with other man-made gases such as methane, nitrous oxide, fluorocarb ...
Pacific puzzle
Pacific puzzle

... strong El Niños are usually followed by two to three years of relative cooling. So some scientists worry that starting with an outlier makes the slowdown seem more severe than it has been. “For me, the problem with taking 1998 as a starting point is that it misrepresents the trend,” says England. “F ...
ppt - Department of Statistics | Rajshahi University
ppt - Department of Statistics | Rajshahi University

... Alabama at Hantsville: Alabama State Climatologist: IPCC Lead Author: 2001 TAR ( Third Assessment Report) : Contributor 1992 IPCC Supplement: Contributor 1994 Radiative Forcing of Climate Change: Key Contributor 1995 SAR ( IPCC Second Assessment Report; Contributing Author: IPCC 2007 Report (AR4)- W ...
Downscaling of Global Climate Model
Downscaling of Global Climate Model

... was a report prepared by the Intergovernmental Panel on Climate Change (IPCC) for the Third Assessment Report (TAR) in 2001, on future emission scenarios to be used for driving global circulation models to develop climate change scenarios. • It was used to replace the IS92 scenarios used for the IPC ...
The Kyoto Protocol and Global Warming - Imprimis
The Kyoto Protocol and Global Warming - Imprimis

... response of the climate thus far to the small amount of energy added by humans from increased carbon dioxide in the air? This question is important because, in order to prove the reliability of future climate forecasts from computer simulations, those simulations need to prove that they are reliable ...
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North Report

The North Report was a 2006 report evaluating reconstructions of the temperature record of the past two millennia, providing an overview of the state of the science and the implications for understanding of global warming. It was produced by a National Research Council committee, chaired by Gerald North, at the request of Representative Sherwood Boehlert as chairman of the U.S. House of Representatives Committee on Science.These reconstructions had been dubbed ""hockey stick graphs"" after the 1999 reconstruction by Mann, Bradley and Hughes (MBH99), which used the methodology of their 1998 reconstruction covering 600 years (MBH98). A graph based on MBH99 was featured prominently in the 2001 IPCC Third Assessment Report (TAR), and became a focus of the global warming controversy over the 1997 Kyoto Protocol. It was disputed by various contrarians, and in the politicisation of this hockey stick controversy the New York Times of 14 February 2005 hailed a paper by businessman Stephen McIntyre and economist Ross McKitrick (MM05) as undermining the scientific consensus behind the Kyoto agreement. On 23 June 2005, Rep. Joe Barton, chairman of the House Committee on Energy and Commerce, with Ed Whitfield, Chairman of the Subcommittee on Oversight and Investigations, wrote joint letters referring to issues raised by the Wall Street Journal article, and demanding that Mann, Bradley and Hughes provide full records on their data and methods, finances and careers, information about grants provided to the institutions they had worked for, and the exact computer codes used to generate their results. Boehlert said this was a ""misguided and illegitimate investigation"" into something that should properly be under the jurisdiction of the Science Committee, and in November 2005 after Barton dismissed the offer of an independent investigation organised by the U.S. National Academy of Sciences, Boehlert requested the review, which became the North Report.The North Report went through a rigorous review process, and was published on 22 June 2006. It concluded ""with a high level of confidence that global mean surface temperature was higher during the last few decades of the 20th century than during any comparable period during the preceding four centuries"", justified by consistent evidence from a wide variety of geographically diverse proxies, but ""Less confidence can be placed in large-scale surface temperature reconstructions for the period from 900 to 1600"". It broadly agreed with the basic findings of the original MBH studies, which subsequently been supported by other reconstructions and proxy records, while emphasising uncertainties over earlier periods. The principal component analysis methodology that McIntyre and McKitrick had contested 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.
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