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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 11, NUMBER 4, APRIL-MAY 1998

NEWS...
RESEARCH NEWS

Item #d98may98

Greenhouse warming and ozone loss: Model experiments indicate that stratospheric cooling caused by greenhouse gases could be aggravating stratospheric ozone depletion. (See Shindell article in Prof. Pubs./Of Gen. Interest, this Global Climate Change Digest issue--April-May 1998; Science, p. 202, Apr. 10; Science News, p. 228, Apr. 11.)

Item #d98may99

Hurricane winds could increase slightly in a warmer climate, according to the most detailed simulations to date of future hurricanes. (See Knutson article in Prof. Pubs./Impacts/Storms, this Global Climate Change Digest issue--April-May 1998, and Science News, p. 103, Feb. 14.)

Item #d98may100

Forest migration, once viewed a simple translation of species' habitats, could in fact be much more complicated because of the nature of seed dispersal and alteration of the natural landscape by humans. Concern over the effects of climate change on ecosystems has focused on the rate of change; this new discovery suggests that other factors (such as fragmentation of habitats) may also be important. (See BioScience article in Prof. Pubs./Impacts/Forests, this Global Climate Change Digest issue--April-May 1998, and Stevens article in The New York Times, Mar. 10.)

Item #d98may101

Coral reefs may be facing a newly recognized threat from climate change. Elevated levels of CO₂ are expected to reduce the amount of carbonate dissolved in seawater, hindering the deposition of limestone that builds reefs. This conclusion, based on recent work at the Biosphere II enclosed ecosystem, was discussed at a January symposium on coral reefs. (See Science, p. 989, Feb. 13, 1998; Eos, Trans. Amer. Geophys. Union, p. 249 ff., May 26.)

Item #d98may102

Alien species could become more invasive if the world continues to warm. Experts at an international workshop on the topic (San Mateo, Calif., April 1998) warn however that too little research has been done to predict exactly what would happen. (See New Scientist, p. 22, Apr. 18, 1998.)

Item #d98may103

Tropical diseases: Recent reports of mosquito-borne diseases spreading into new areas due to high temperatures are discussed in New Scientist, p. 20, Apr. 18. The article also summarizes the recent paper on the topic by Epstein et al. (See Global Climate Change Digest, Prof. Pubs./Gen. Interest & Policy, Mar. 1998.)