Gerald Marsh, A Theory of Ice Ages

Thongchai Thailand

Gerald Marsh, retired Argonne National Laboratories Physicist, challenges the usual assumption that ice age cycles are initiated by Milankovich Cycles and driven by the Arrhenius effect of carbon dioxide. He says that the key variable here is “low altitude cloud cover” driven by cosmic rays. A paper worth reading.

ABSTRACT

  1. The existing understanding of interglacial periods is that they
    are initiated by Milankovitch cycles enhanced by rising atmospheric
    carbon dioxide concentrations. During interglacials, global temperature is
    also believed to be primarily controlled by carbon dioxide concentrations,
    modulated by internal processes such as the Pacific Decadal Oscillation
    and the North Atlantic Oscillation. Recent work challenges the
    fundamental basis of these conceptions.
  2. INTRODUCTION
    The history of the role of carbon dioxide in climate begins with the work of Tyndall 1861 and later in 1896 by Arrhenius. The concept that carbon dioxide controlled climate fell into disfavor for a variety of reasons until…

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