Subject: Info - global warming & oceans (fwd)

Michael Williamson (pita@whale.simmons.edu)
Fri, 21 Feb 1997 08:09:20 -0500 (EST)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
J. Michael Williamson
   Principal Investigator-WhaleNet <http://whale.wheelock.edu>
   Associate Professor-Science
   Wheelock College, 200 The Riverway, Boston, MA 02215
voice: 617.734.5200, ext. 256
fax:    617.734.8666, or 617.566.7369
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---------- Forwarded message ----------
Date: Thu, 20 Feb 1997 06:28:43 -0500
From: Dagmar Fertl <Dagmar_Fertl@mms.gov>
Reply-To: Marine Mammals Research and Conservation Discussion
     <MARMAM@UVVM.BITNET>
To: Multiple recipients of list MARMAM <MARMAM@UVVM.BITNET>
Subject: newclip - global warming & oceans

     from Greenwire 2/18-19/97


     CLIMATE CHANGE II:  TWO STUDIES EXPLORE OCEANS' ROLE.


     The "greenhouse effect" may be triggering a wind-and-current cycle in
     the eastern Pacific Ocean that offsets global warming, according to a
     study published on 2/14 in the journal SCIENCE.

     Richard Seager of Columbia U.'s Lamont-Doherty Earth Observatory said
     a view of the past century's sea-surface temperature records show some
     cooling has occurred along the equator in the eastern Pacific.  Seager
     believes the overall warming of the Earth's atmosphere has fanned
     east-to-west winds in the south Pacific, which in turn push warm
     surface water at the equator westward, triggering an upwelling of
     colder water. Colder water absorbs heat from the atmosphere and
     surrounding ocean, and hence, may offset global warming, Seager said.

     NASA's James Hansen, "who pioneered the study of global warming," said
     Seager's theory was "plausible" but possibly inconsistent with other
     data.  Although there was cooling in the eastern Pacific early in this
     century, Hansen said, waters there have "warmed strongly" since 1965.
     If Seager's theory were correct, then those waters would not have
     warmed, Hansen said (Paul Recer, AP/SEATTLE DAILY JOURNAL OF COMMERCE,
     2/14).

     GLOBAL WARMING UNDER THE SEA?

     By studying the fossilized remains of ancient micro- organisms that
     lived on the bottom of the mid-Atlantic Ocean, scientists from the US
     Geological Survey and MIT have determined that the number of such
     species rose and fell "in harmony with" the coming and going of global
     ice ages.  The findings, published in the current issue of the journal
     NATURE, contradict the "prevailing belief" that the deep sea is an
     isolated ecological system and suggest the deep ocean "is not going to
     be immune" from global warming (William Stevens, N.Y. TIMES, 2/16).