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Global Climate Change Digest

A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999



Item #d94may259

Ocean temperature rise: An upward trend of temperature observed over the past several decades in the subtropical Atlantic generally matches the pattern predicted by climate models, except that it has occurred in the deep ocean rather than at the surface. (See Science News, p. 295, May 7.)

Item #d94may260

Evidence against pre-CFC ozone hole: Observations of very low values of ozone over Antarctica in 1958 have been used as evidence against human impacts on stratospheric ozone. However, a re-examination of those data shows no evidence for an early ozone hole. (See "Antarctic Total Ozone in 1958," P.A. Newman (NASA-Goddard, Code 916, Greenbelt MD 20771), Science, 264(5158), 543-546, Apr. 22, 1994.)

Item #d94may261

NOAA program announcement: Letters of intent for external funding of research for fiscal year 1995 under the Climate and Global Change Program are due June 14. Potential topics span the physical, biological and social sciences. Contact NOAA Off. Global Progs., 1100 Wayne Ave., S. 1225, Silver Spring MD 20910 (301-427-2089).

Item #d94may262

"Forests Destined to End in Mire," F. Pearce, New Scientist, p. 16, May 7. Lee Klinger of the National Center for Atmospheric Research thinks that peat bogs, not forests, are the true climax community into which all ecosystems will evolve, and that they could be the real driving force of climate change. The theory was presented at a conference on the Gaia hypothesis held in Oxford, U.K., where it received mixed reactions.

Item #d94may263

"A Breath of Fresh Air for Planet Earth," F. Pearce, ibid., p. 16, Apr. 23. Discusses the recent finding by Novelli et al. (GCCD, Apr. 1994) that atmospheric levels of carbon monoxide have suddenly decreased.

Item #d94may264

"Ecologists Dare To Ask: How Much Does Diversity Matter?" Y. Baskin, Science, pp. 202-203, Apr. 8. Summarizes a February workshop (Asilomar, California) on the scientific evidence that alterations in biodiversity affect the functions of ecosystems, such as the ability to absorb CO2.

Item #d94may265

"Information Overload May Swamp Climate Computers," V. Kiernan, New Scientist, p. 9, Jan. 29. A National Academy of Sciences panel urges changes in NASA's approach to handling data from the Earth Observing System, some of which NASA appears willing to carry out.

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