Global Warming: Limitations of General Circulation Models (Testimony,
11/16/95, GAO/T-RCED-96-43).

GAO discussed the use of climate change models in predicting future
climate changes. GAO noted that: (1) although general circulation models
have improved over the last decade, their ability to predict climate
changes accurately is limited by scientists' understanding of climate
processes and interactions and insufficient computer power to process
the vast quantity of climate data needed to simulate changes in global
climate; (2) scientists are improving the accuracy of general
circulation models by incorporating climate processes that better
reflect the interactions between the ocean and atmosphere; and (3)
scientists believe it will take sustained efforts to reduce the
uncertainties in projecting climate changes and trends.

--------------------------- Indexing Terms -----------------------------

 REPORTNUM:  T-RCED-96-43
     TITLE:  Global Warming: Limitations of General Circulation Models
      DATE:  11/16/95
   SUBJECT:  Environmental monitoring
             Computer modeling
             Climate statistics
             Data integrity
             Earth sciences data systems
             Atmospheric research
             Oceanographic research
             Air pollution control
IDENTIFIER:  U.S. Global Change Research Program
             Global Climate Observing System
             ICSU/WMO World Climate Research Programme
             
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