February 28, 2007
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FROM VOLUME 8, NUMBER 9, SEPTEMBER 1995
OF GENERAL INTEREST: CLIMATE CHANGE SCIENCE
"The Evidence Mounts Up," M.C. MacCracken (U.S. Global Change
Res. Prog., 300 D St. SW, Washington DC 20024), Nature, 376(6524),
645-646, Aug., 24, 1995.
Summarizes a week-long symposium examining climate variability over the past
1,000 years, which brought together results from an array of observational
techniques, analyses of natural records, and model results (IUGG General
Assembly, Boulder, Colorado, July 1995). Our climate is unusually warm, and
although greenhouse gases and aerosols are not yet convicted beyond all
reasonable doubt, the case is becoming steadily stronger.
Two related items in Nature, 376(6539), Aug. 3, 1995:
"Stabilists Strike Again," D. Van der Wateren (Inst. Earth Sci.,
Free Univ., De Boelelaan 1085, NL 1081 HV Amsterdam, Neth.), R. Hindmarsh,
389-391. The following paper will start the next round of a ten-year debate on
the stability of the Antarctic ice sheet, which is not likely to be settled
until there is better geochronological data.
"Preservation of Miocene Glacier Ice in East Antarctica," D.E.
Sugden (Dept. Geog., Univ. Edinburgh, Edinburgh EH8 9XP, UK), D.R. Marchant et
al., 412-414. Reports the discovery of buried glacier ice in East Antarctica
which appears to have survived for at least 8.1 million years. Stable polar
conditions must have persisted in this region for at least that time.
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