The Climate-Chemistry Connection

  1. James E. Hansen and
  2. Taro Takahashi
  1. Wallace S. Broecker1 and
  2. Tsung-Hung Peng2

Published Online: 19 MAR 2013

DOI: 10.1029/GM029p0327

Climate Processes and Climate Sensitivity

Climate Processes and Climate Sensitivity

How to Cite

Broecker, W. S. and Peng, T.-H. (1984) The Climate-Chemistry Connection, in Climate Processes and Climate Sensitivity (eds J. E. Hansen and T. Takahashi), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM029p0327

Author Information

  1. 1

    Lamont-Doherty Geological Observatory of Columbia University, Palisades, New York 10964

  2. 2

    Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

Publication History

  1. Published Online: 19 MAR 2013
  2. Published Print: 1 JAN 1984

ISBN Information

Print ISBN: 9780875904047

Online ISBN: 9781118666036



  • Climatology—Congresses;
  • Geophysics—Congresses;
  • Ocean-atmosphere interaction—Congresses


The impacts on ocean chemistry of a variety of scenarios capable of producing the 90×10−6 atmosphere glacial to interglacial increase in CO2 are explored. It is shown that each scenario produces a unique combination of 13C, Cd, O2 and CaCO3 dissolution responses. Thus, once we have reliable ocean wide records of these parameters, it should be possible to greatly reduce the list of those scenarios capable of explaining this CO2 change. If our present information regarding these records is correct, then the only acceptable hypotheses are 1) shelf deposition, 2) Redfield ratio change plus forest growth or 3) phosphorite deposition plus forest growth. When global cadmium records become available further cuts will be possible.