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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 7, JULY 1992

NEWS...
RESEARCH NEWS

Item #d92jul190

Biomass smoke vs. global warming: Atmospheric scientists have calculated that the total cooling effect of smoke generated by burning vegetation over the globe may roughly equal the warming expected from anthropogenic greenhouse gases. (See Sci. News, p. 344, May 23, 1992, and Penner et al., Science, p. 1432, June 5, in Prof. Pub./Gen. Interest--Sci., this issue--July 1992.)

Item #d92jul191

Rapid climate changes and ocean circulation: Concepts may have to be revised based on work discussed in three papers in the April 30 Nature (See Prof. Pub./Gen. Interest.--Sci., this issue--July 1992)

Item #d92jul192

"UARS Science Instruments Are Shut Down," Eos, pp. 257-258, June 16, 1992. On June 2, the primary solar array drive of the Upper Atmosphere Research Satellite failed and its backup stopped. The problem is serious, but NASA hopes to be able to correct it.

Item #d92jul193

"Lightning Takes the Temperature of the Earth," J. Gribbin, New Scientist, p. 16, June 13, 1992. An MIT scientist has found a correlation between lightning and temperature, especially in the tropics, which he thinks can be used to monitor global tropical temperature fluctuations.

Item #d92jul194

"Seasonal Signs of Pollutant Cooling," Sci. News, p. 365, May 30, 1992. Researchers at Brookhaven National Laboratory have found new evidence of the cooling effects of sulfate aerosols, by comparing summer temperature trends with those of sulfate emissions since 1854.