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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 2, NUMBER 6, JUNE 1989

NEWS...
RESEARCH NEWS NOTES

Item #d89jun8

"Halons Hit New High over Antarctica," I. Anderson, New Scientist, p. 24, May 20, 1989. Data announced by an Australian scientist at a conference there indicate halon concentrations are rising about 25 percent a year over Antarctica and Tasmania, providing the first evidence of accumulating halons in the Southern Hemisphere and suggesting halon emissions worldwide are much greater than estimated.

Item #d89jun9

"Changing Sun Could Influence Ozone Chemistry," ibid., p. 30. A recent study based on satellite data shows the ultraviolet energy output of the sun, which influences stratospheric ozone chemistry, has varied by a factor of two during the 1980s. Scientists will be watching for any influence on ozone from the peak in solar activity expected to occur within a year.

Item #d89jun10

"Changing Landscapes in a Warmer Britain," S. Pain, ibid., p. 31. A fairly detailed account of results presented at the Second International Workshop on Plant Genetic Resources held in April at the University of Sheffield.

Item #d89jun11

"Greener Cars May Warm the World," R. Gould, J. Gribbin, ibid., p. 34. Tests conducted in Sweden and France show that cars equipped with catalytic converters emit significantly higher quantities of nitrous oxide, a greenhouse gas that also depletes ozone.

Item #d89jun12

"Utility Industry Reviews Carbon Dioxide Emissions Reduction Options," JAPCA, pp. 739, 760 ff., May 1989. The Edison Electric Institute has commissioned a study to explore the premise that more efficient electricity use in the industrial and transportation sectors achieved through electrotechnology will increase productivity while decreasing carbon dioxide emissions.

Item #d89jun13

"Global Smog: Newest Greenhouse Projection," J. Raloff, Science News, pp. 262-263, Apr. 29, 1989. Several researchers presented evidence at a recent conference on climate and air quality, sponsored by the U.S. EPA and the American Gas Association, that urban and even rural smog and ozone levels could increase with global warming. (See related paper in PROFESSIONAL PUBLICATIONS/TREND ANALYSIS, this Global Climate Change Digest issue--June 1989.)

Item #d89jun14

"Recent Ocean Warming: Are Satellites Right?" R. Monastersky, ibid., p. 247, Apr. 22. Examines controversy over the conclusion drawn by Alan Strong from satellite data that ocean temperatures have increased in the last several years. (See Strong's paper from Nature in PROFESSIONAL PUBLICATIONS/TREND ANALYSIS, this Global Climate Change Digest issue--June 1989.)

Item #d89jun15

"Solar Variations Fuel Debate on Climate," J. Gribbin, New Scientist, p. 28, Mar. 25. Gives detailed coverage of evidence of a newly identified 200-year cycle in solar activity linked to the "little ice ages." Studies by meteorologists reported at a recent meeting in London indicate that the likely warming from the greenhouse effect will swamp any cooling associated with such a cycle.