February 28, 2007
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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
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.)
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.
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.)
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.)
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,
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.)
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