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U.S. Department of Energy
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First detection of carbon dioxide effects: workshop summary

Conference ·
OSTI ID:5590773
For more than a decade, numerical models have predicted that increasing CO/sub 2/ concentrations would cause a warming of the global climate, with amplified warming in polar regions and cooling in the stratosphere. Such changes, however, are not now obvious in the climatic record, although it is possible that the changes are being obscured by natural climatic fluctuations or by the perturbing influence of other factors. Indeed, a number of observational studies have found, after attempting to account for the possible climatic changes caused by such other factors as volcanoes and changes in solar activity, that the predicted global warming may be occurring. Studies of the polar regions and stratosphere, however, do not yet show the expected changes. The Department of Energy Workshop on First Detection of CO/sub 2/ Effects was held to develop a research strategy that would provide the basis for early identification of the expected CO/sub 2/-induced response so that model projections of a warmer climate and of impacts on the biosphere can either be confirmed, rejected, or modified. A three-part strategy was developed requiring (1) determination of whether a climate or biospheric change has occurred, (2) consideration of the role of other factors that might contribute to or mask the CO/sub 2/-induced response, and (3) isolation of the climatic and biospheric response to increasing CO/sub 2/ concentrations. This third task is to be accomplished by statistical analysis of a CO/sub 2/-specific set of climatic and biospheric parameters that must respond together as theoretically predicted if CO/sub 2/ is to be judged as the most prabable causal factor.
Research Organization:
Lawrence Livermore National Lab., CA (USA); Department of Energy, Washington, DC (USA)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
5590773
Report Number(s):
UCRL-87302; CONF-8106214-1; ON: DE82009340
Country of Publication:
United States
Language:
English