24. Richard A. Kerr, "Sky-High Findings Drop New Hints of Greenhouse Warming," Science, 273, 34 (5 Jul 96).
Upper atmospheric temperature measurements have found additional evidence for the predictions of global waming from greenhouse gases -- stratospheric cooling and tropospheric warming, especially in the Southern Hemisphere. Although some find it difficult to distinguish a clear global warming signal from climatic fluctuation, Geophysical Fluid Dynamics Laboratory Director Jerry Mahlman calls it "the closest to a smoking gun."
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