Warming in Antarctica’s polar desert

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    In the polar desert of Antarctica, only microscopic plants can survive. (Photo: NASA)

    Berry Lyons has spent the past 15 years working in the McMurdo Dry Valleys of Antarctica, which he called a ‘polar desert.’

    Lyons is director of the Byrd Polar Research Center at Ohio State, and a member of the prestigious Explorer’s Club.

    Berry Lyons: The dry valleys are just beautiful, it’s like being in southern Utah, except with a minus 20 temperature regime, with ice and snow up high above you. It’s just a beautiful, beautiful place.

    In the Antarctic polar desert, only microscopic plants can survive the freezing, dry temperatures, and five-and-a-half months without sun. That’s why this part of the world has been used as an analog to study possible life on Mars.

    But now Lyons is focused on Earth. He and other scientists are participating in the Long Term Ecological Research project, studying how this sensitive Antarctic ecosystem functions and responds to a warming climate. Lyons told Earth & Sky that, compared to temperate, habitable regions, the polar regions experience change almost immediately.

    Berry Lyons: The polar regions are really the canaries in the coal mines in many ways. We should expect very dramatic changes there. And again, what we’ve shown is very subtle changes in temperature, by temperate standards, really change the ecosystems dramatically.

    Our thanks today to NASA, in celebration of the International Polar Year.

    Studying Earth’s poles, where change is happening fastest
    Listen to a 7-minute podcast with geophysicist Robin Bell, one of the planners of the International Polar Year

    NEW! Find related content with Sphere

    2 Comments for Warming in Antarctica’s polar desert

    1. 1
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      doug in colorado says:

      The clear voice of Science? Try this.

      Open Letter to the Secretary-General of the United Nations

      Dec. 13, 2007

      His Excellency Ban Ki-Moon

      Secretary-General, United Nations

      New York, N.Y.

      Dear Mr. Secretary-General,

      Re: UN climate conference taking the World in entirely the wrong direction

      It is not possible to stop climate change, a natural phenomenon that has affected humanity through the ages. Geological, archaeological, oral and written histories all attest to the dramatic challenges posed to past societies from unanticipated changes in temperature, precipitation, winds and other climatic variables. We therefore need to equip nations to become resilient to the full range of these natural phenomena by promoting economic growth and wealth generation.

      The United Nations Intergovernmental Panel on Climate Change (IPCC) has issued increasingly alarming conclusions about the climatic influences of human-produced carbon dioxide (CO2), a non-polluting gas that is essential to plant photosynthesis. While we understand the evidence that has led them to view CO2 emissions as harmful, the IPCC’s conclusions are quite inadequate as justification for implementing policies that will markedly diminish future prosperity. In particular, it is not established that it is possible to significantly alter global climate through cuts in human greenhouse gas emissions. On top of which, because attempts to cut emissions will slow development, the current UN approach of CO2 reduction is likely to increase human suffering from future climate change rather than to decrease it.

      The IPCC Summaries for Policy Makers are the most widely read IPCC reports amongst politicians and non-scientists and are the basis for most climate change policy formulation. Yet these Summaries are prepared by a relatively small core writing team with the final drafts approved line-by-line

      by government representatives. The great majority of IPCC contributors and ­reviewers, and the tens of thousands of other scientists who are qualified to comment on these matters, are not involved in the preparation of these documents. The summaries therefore cannot properly be represented as a consensus view among experts.

      Contrary to the impression left by the IPCC Summary reports:

      z Recent observations of phenomena such as glacial retreats, sea-level rise and the migration of temperature-sensitive species are not evidence for abnormal climate change, for none of these changes has been shown to lie outside the bounds of known natural variability.

      z The average rate of warming of 0.1 to 0. 2 degrees Celsius per decade recorded by satellites during the late 20th century falls within known natural rates of warming and cooling over the last 10,000 years.

      z Leading scientists, including some senior IPCC representatives, acknowledge that today’s computer models cannot predict climate. Consistent with this, and despite computer projections of temperature rises, there has been no net global warming since 1998. That the current temperature plateau follows a late 20th-century period of warming is consistent with the continuation today of natural multi-decadal or millennial climate cycling.

      In stark contrast to the often repeated assertion that the science of climate change is “settled,” significant new peer-reviewed research has cast even more doubt on the hypothesis of dangerous human-caused global warming. But because IPCC working groups were generally instructed (see http://ipcc-wg1.ucar.edu/wg1/docs/wg1_timetable_2006-08-14.pdf) to consider work published only through May, 2005, these important findings are not included in their reports; i.e., the IPCC assessment reports are already materially outdated.

      The UN climate conference in Bali has been planned to take the world along a path of severe CO2 restrictions, ignoring the lessons apparent from the failure of the Kyoto Protocol, the chaotic nature of the European CO2 trading market, and the ineffectiveness of other costly initiatives to curb greenhouse gas emissions. Balanced cost/benefit analyses provide no support for the introduction of global measures to cap and reduce energy consumption for the purpose of restricting CO2 emissions. Furthermore, it is irrational to apply the “precautionary principle” because many scientists recognize that both climatic coolings and warmings are realistic possibilities over the medium-term future.

      The current UN focus on “fighting climate change,” as illustrated in the Nov. 27 UN Development Programme’s Human Development Report, is distracting governments from adapting to the threat of inevitable natural climate changes, whatever forms they may take. National and international planning for such changes is needed, with a focus on helping our most vulnerable citizens adapt to conditions that lie ahead. Attempts to prevent global climate change from occurring are ultimately futile, and constitute a tragic misallocation of resources that would be better spent on humanity’s real and pressing problems.

      Yours faithfully,

      [List of signatories]

      The following are signatories to the Dec. 13th letter to the Ban Ki-moon, Secretary-General of the United Nations on the UN Climate conference in Bali:

      Don Aitkin, PhD, Professor, social scientist, retired vice-chancellor and president, University of Canberra, Australia

      William J.R. Alexander, PhD, Professor Emeritus, Dept. of Civil and Biosystems Engineering, University of Pretoria, South Africa; Member, UN Scientific and Technical Committee on Natural Disasters, 1994-2000

      Bjarne Andresen, PhD, physicist, Professor, The Niels Bohr Institute, University of Copenhagen, Denmark

      Geoff L. Austin, PhD, FNZIP, FRSNZ, Professor, Dept. of Physics, University of Auckland, New Zealand

      Timothy F. Ball, PhD, environmental consultant, former climatology professor, University of Winnipeg

      Ernst-Georg Beck, Dipl. Biol., Biologist, Merian-Schule Freiburg, Germany

      Sonja A. Boehmer-Christiansen, PhD, Reader, Dept. of Geography, Hull University, U.K.; Editor, Energy & Environment journal

      Chris C. Borel, PhD, remote sensing scientist, U.S.

      Reid A. Bryson, PhD, DSc, DEngr, UNE P. Global 500 Laureate; Senior Scientist, Center for Climatic Research; Emeritus Professor of Meteorology, of Geography, and of Environmental Studies, University of Wisconsin

      Dan Carruthers, M.Sc., wildlife biology consultant specializing in animal ecology in Arctic and Subarctic regions, Alberta

      R.M. Carter, PhD, Professor, Marine Geophysical Laboratory, James Cook University, Townsville, Australia

      Ian D. Clark, PhD, Professor, isotope hydrogeology and paleoclimatology, Dept. of Earth Sciences, University of Ottawa

      Richard S. Courtney, PhD, climate and atmospheric science consultant, IPCC expert reviewer, U.K.

      Willem de Lange, PhD, Dept. of Earth and Ocean Sciences, School of Science and Engineering, Waikato University, New Zealand

      David Deming, PhD (Geophysics), Associate Professor, College of Arts and Sciences, University of Oklahoma

      Freeman J. Dyson, PhD, Emeritus Professor of Physics, Institute for Advanced Studies, Princeton, N.J.

      Don J. Easterbrook, PhD, Emeritus Professor of Geology, Western Washington University

      Lance Endersbee, Emeritus Professor, former dean of Engineering and Pro-Vice Chancellor of Monasy University, Australia

      Hans Erren, Doctorandus, geophysicist and climate specialist, Sittard, The Netherlands

      Robert H. Essenhigh, PhD, E.G. Bailey Professor of Energy Conversion, Dept. of Mechanical Engineering, The Ohio State University

      Christopher Essex, PhD, Professor of Applied Mathematics and Associate Director of the Program in Theoretical Physics, University of Western Ontario

      David Evans, PhD, mathematician, carbon accountant, computer and electrical engineer and head of ‘Science Speak,’ Australia

      William Evans, PhD, editor, American Midland Naturalist; Dept. of Biological Sciences, University of Notre Dame

      Stewart Franks, PhD, Professor, Hydroclimatologist, University of Newcastle, Australia

      R. W. Gauldie, PhD, Research Professor, Hawai’i Institute of Geophysics and Planetology, School of Ocean Earth Sciences and Technology, University of Hawai’i at Manoa

      Lee C. Gerhard, PhD, Senior Scientist Emeritus, University of Kansas; former director and state geologist, Kansas Geological Survey

      Gerhard Gerlich, Professor for Mathematical and Theoretical Physics, Institut für Mathematische Physik der TU Braunschweig, Germany

      Albrecht Glatzle, PhD, sc.agr., Agro-Biologist and Gerente ejecutivo, INTTAS, Paraguay

      Fred Goldberg, PhD, Adjunct Professor, Royal Institute of Technology, Mechanical Engineering, Stockholm, Sweden

      Vincent Gray, PhD, expert reviewer for the IPCC and author of The Greenhouse Delusion: A Critique of ‘Climate Change 2001, Wellington, New Zealand

      William M. Gray, Professor Emeritus, Dept. of Atmospheric Science, Colorado State University and Head of the Tropical Meteorology Project

      Howard Hayden, PhD, Emeritus Professor of Physics, University of Connecticut

      Louis Hissink MSc, M.A.I.G., editor, AIG News, and consulting geologist, Perth, Western Australia

      Craig D. Idso, PhD, Chairman, Center for the Study of Carbon Dioxide and Global Change, Arizona

      Sherwood B. Idso, PhD, President, Center for the Study of Carbon Dioxide and Global Change, AZ, USA

      Andrei Illarionov, PhD, Senior Fellow, Center for Global Liberty and Prosperity; founder and director of the Institute of Economic Analysis

      Zbigniew Jaworowski, PhD, physicist, Chairman – Scientific Council of Central Laboratory for Radiological Protection, Warsaw, Poland

      Jon Jenkins, PhD, MD, computer modelling – virology, NSW, Australia

      Wibjorn Karlen, PhD, Emeritus Professor, Dept. of Physical Geography and Quaternary Geology, Stockholm University, Sweden

      Olavi Kärner, Ph.D., Research Associate, Dept. of Atmospheric Physics, Institute of Astrophysics and Atmospheric Physics, Toravere, Estonia

      Joel M. Kauffman, PhD, Emeritus Professor of Chemistry, University of the Sciences in Philadelphia

      David Kear, PhD, FRSNZ, CMG, geologist, former Director-General of NZ Dept. of Scientific & Industrial Research, New Zealand

      Madhav Khandekar, PhD, former research scientist, Environment Canada; editor, Climate Research (2003-05); editorial board member, Natural Hazards; IPCC expert reviewer 2007

      William Kininmonth M.Sc., M.Admin., former head of Australia’s National Climate Centre and a consultant to the World Meteorological organization’s Commission for Climatology Jan J.H. Kop, MSc Ceng FICE (Civil Engineer Fellow of the Institution of Civil Engineers), Emeritus Prof. of Public Health Engineering, Technical University Delft, The Netherlands

      Prof. R.W.J. Kouffeld, Emeritus Professor, Energy Conversion, Delft University of Technology, The Netherlands

      Salomon Kroonenberg, PhD, Professor, Dept. of Geotechnology, Delft University of Technology, The Netherlands

      Hans H.J. Labohm, PhD, economist, former advisor to the executive board, Clingendael Institute (The Netherlands Institute of International Relations), The Netherlands

      The Rt. Hon. Lord Lawson of Blaby, economist; Chairman of the Central Europe Trust; former Chancellor of the Exchequer, U.K.

      Douglas Leahey, PhD, meteorologist and air-quality consultant, Calgary

      David R. Legates, PhD, Director, Center for Climatic Research, University of Delaware

      Marcel Leroux, PhD, Professor Emeritus of Climatology, University of Lyon, France; former director of Laboratory of Climatology, Risks and Environment, CNRS

      Bryan Leyland, International Climate Science Coalition, consultant and power engineer, Auckland, New Zealand

      William Lindqvist, PhD, independent consulting geologist, Calif.

      Richard S. Lindzen, PhD, Alfred P. Sloan Professor of Meteorology, Dept. of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology

      A.J. Tom van Loon, PhD, Professor of Geology (Quaternary Geology), Adam Mickiewicz University, Poznan, Poland; former President of the European Association of Science Editors

      Anthony R. Lupo, PhD, Associate Professor of Atmospheric Science, Dept. of Soil, Environmental, and Atmospheric Science, University of Missouri-Columbia

      Richard Mackey, PhD, Statistician, Australia

      Horst Malberg, PhD, Professor for Meteorology and Climatology, Institut für Meteorologie, Berlin, Germany

      John Maunder, PhD, Climatologist, former President of the Commission for Climatology of the World Meteorological Organization (89-97), New Zealand

      Alister McFarquhar, PhD, international economy, Downing College, Cambridge, U.K.

      Ross McKitrick, PhD, Associate Professor, Dept. of Economics, University of Guelph

      John McLean, PhD, climate data analyst, computer scientist, Australia

      Owen McShane, PhD, economist, head of the International Climate Science Coalition; Director, Centre for Resource Management Studies, New Zealand

      Fred Michel, PhD, Director, Institute of Environmental Sciences and Associate Professor of Earth Sciences, Carleton University

      Frank Milne, PhD, Professor, Dept. of Economics, Queen’s University

      Asmunn Moene, PhD, former head of the Forecasting Centre, Meteorological Institute, Norway

      Alan Moran, PhD, Energy Economist, Director of the IPA’s Deregulation Unit, Australia

      Nils-Axel Morner, PhD, Emeritus Professor of Paleogeophysics & Geodynamics, Stockholm University, Sweden

      Lubos Motl, PhD, Physicist, former Harvard string theorist, Charles University, Prague, Czech Republic

      John Nicol, PhD, Professor Emeritus of Physics, James Cook University, Australia

      David Nowell, M.Sc., Fellow of the Royal Meteorological Society, former chairman of the NATO Meteorological Group, Ottawa

      James J. O’Brien, PhD, Professor Emeritus, Meteorology and Oceanography, Florida State University

      Cliff Ollier, PhD, Professor Emeritus (Geology), Research Fellow, University of Western Australia

      Garth W. Paltridge, PhD, atmospheric physicist, Emeritus Professor and former Director of the Institute of Antarctic and Southern Ocean Studies, University of Tasmania, Australia

      R. Timothy Patterson, PhD, Professor, Dept. of Earth Sciences (paleoclimatology), Carleton University

      Al Pekarek, PhD, Associate Professor of Geology, Earth and Atmospheric Sciences Dept., St. Cloud State University, Minnesota

      Ian Plimer, PhD, Professor of Geology, School of Earth and Environmental Sciences, University of Adelaide and Emeritus Professor of Earth Sciences, University of Melbourne, Australia

      Brian Pratt, PhD, Professor of Geology, Sedimentology, University of Saskatchewan

      Harry N.A. Priem, PhD, Emeritus Professor of Planetary Geology and Isotope Geophysics, Utrecht University; former director of the Netherlands Institute for Isotope Geosciences

      Alex Robson, PhD, Economics, Australian National University Colonel F.P.M. Rombouts, Branch Chief – Safety, Quality and Environment, Royal Netherland Air Force

      R.G. Roper, PhD, Professor Emeritus of Atmospheric Sciences, School of Earth and Atmospheric Sciences, Georgia Institute of Technology

      Arthur Rorsch, PhD, Emeritus Professor, Molecular Genetics, Leiden University, The Netherlands

      Rob Scagel, M.Sc., forest microclimate specialist, principal consultant, Pacific Phytometric Consultants, B.C.

      Tom V. Segalstad, PhD, (Geology/Geochemistry), Head of the Geological Museum and Associate Professor of Resource and Environmental Geology, University of Oslo, Norway

      Gary D. Sharp, PhD, Center for Climate/Ocean Resources Study, Salinas, CA

      S. Fred Singer, PhD, Professor Emeritus of Environmental Sciences, University of Virginia and former director Weather Satellite Service

      L. Graham Smith, PhD, Associate Professor, Dept. of Geography, University of Western Ontario

      Roy W. Spencer, PhD, climatologist, Principal Research Scientist, Earth System Science Center, The University of Alabama, Huntsville

      Peter Stilbs, TeknD, Professor of Physical Chemistry, Research Leader, School of Chemical Science and Engineering, KTH (Royal Institute of Technology), Stockholm, Sweden

      Hendrik Tennekes, PhD, former director of research, Royal Netherlands Meteorological Institute

      Dick Thoenes, PhD, Emeritus Professor of Chemical Engineering, Eindhoven University of Technology, The Netherlands

      Brian G Valentine, PhD, PE (Chem.), Technology Manager – Industrial Energy Efficiency, Adjunct Associate Professor of Engineering Science, University of Maryland at College Park; Dept of Energy, Washington, DC

      Gerrit J. van der Lingen, PhD, geologist and paleoclimatologist, climate change consultant, Geoscience Research and Investigations, New Zealand

      Len Walker, PhD, Power Engineering, Australia

      Edward J. Wegman, PhD, Department of Computational and Data Sciences, George Mason University, Virginia

      Stephan Wilksch, PhD, Professor for Innovation and Technology Management, Production Management and Logistics, University of Technolgy and Economics Berlin, Germany

      Boris Winterhalter, PhD, senior marine researcher (retired), Geological Survey of Finland, former professor in marine geology, University of Helsinki, Finland

      David E. Wojick, PhD, P.Eng., energy consultant, Virginia

      Raphael Wust, PhD, Lecturer, Marine Geology/Sedimentology, James Cook University, Australia

      A. Zichichi, PhD, President of the World Federation of Scientists, Geneva, Switzerland; Emeritus Professor of Advanced Physics, University of Bologna, Italy

      Copy to: Heads of state of countries of the signatory persons.

    2. 2
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      Bob says:

      Nice evidence.

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