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  • 15-Aug-09 Some Unsettled Problems in Climate Science
  • SEPP Science Editorial #25-2009
    (in TWTW Aug 15, 2009)

    S. Fred Singer, Chairman and President , Science and Environmental Policy Project (SEPP)

    Some Unsettled Problems in Climate Science

    Aug 15, 2009

    This presentation is directed primarily towards scientists who have some familiarity with climate problems.

    Our aim is to show

    (1) that the "science is NOT settled"

    (2) that NIPCC is in every sense as competent as IPCC

    (3) that we need help in solving some sticky problems

    (4) that continued but targeted research support is essential

    My most recent seminar talk was at the NOAA Research Center in Boulder, CO, on July 31, a Friday afternoon. More than 200 crowded into the lecture room and discussions continued long after my lecture - some still ongoing by e-mail.

    • How goes the dispute about Climate Sensitivity? Is it 3 degC for a doubling of CO2 (IPCC) or 0.3 (NIPCC)
    • Is WV and cloud feedback positive or negative? and how can the right data give the answer
    • How much of 20th century warming is anthropogenic? nearly all (IPCC) or an insignificant percentage (NIPCC)
    • Can solar activity explain decadal-scale climate changes? Or internal atmosphere-ocean oscillations - or both?
    • How much energy does GH radiation impart to SeaSfcTemp? since downwelling IR cannot penetrate beyond a thin skin of water
    • Why the debate about CO2 residence time Is it 5 years, 50-100 years, or millennia?
    • Is there really a temperature increase "in the pipeline"? Will warming continue after GH gases are stabilized?
    • Why such disagreement about Sea Level Rise? Year 2100 estimates vary greatly: 600cm (Hansen), 1200cm (Weaver), 14-53cm (IPCC-2007), or only 18 cm (Singer)?

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