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

FROM VOLUME 5, NUMBER 1, JANUARY 1992

NEWS...
RESEARCH NEWS

Item #d92jan108

Marine CO₂ Uptake: Heated discussion of the importance of oceanic biological production to the anthropogenic rise in atmospheric CO₂ continues in Global Biogeochem. Cycles. Recent papers by Broecker (GLOBAL CLIMATE CHANGE DIGEST, Prof. Pubs./Of Gen. Interest, Dec. 1991) and by Smith and Mackenzie minimize the importance, while others vehemently disagree (see Prof. Pubs./Marine CO₂ Uptake, this issue--Jan. 1992). Smith and Mackenzie also comment on the views of R. Revelle on this topic in Issues Sci. Technol., p. 26, Fall 1991. See also Karl and Winn paper on JGOFS in Prof. Pubs./Gen. Interest, and a letter by Broecker on WOCE and JGOFS, Science, p. 1566, Dec. 13, 1991.

Results of a five-year study of CO₂ concentrations in the South Pacific, presented at the December American Geophysical Union meeting and in a paper by Murphy et al. (see Prof. Pubs./Marine CO₂ Uptake) call into question the ocean's accepted role in absorbing CO₂.

Item #d92jan109

The Effects of Particles and Clouds on climate is the topic of a press release from an IAMAP symposium at the 20th IUGG General Assembly (Vienna, Aug. 1991), published in Atmos. Environ., 26(3), p. 522, 1992. It concludes that in the absence of better data, the degree to which anthropogenic particles and cloud augmentation offset greenhouse warming remains a matter of speculation.