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Essay / Research Paper Abstract
A 5 page overview of these environmental phenomena. The author points out that these events are most often associated with deleterious impacts to ecology and human health. They can be viewed equally, however, as important evolutionary factors. Bibliography lists 6 sources.
Page Count:
5 pages (~225 words per page)
File: AM2_PPelNino.rtf
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Unformatted sample text from the term paper:
Ni?o and La Ni?a are both natural climatological events, they are more often associated with deleterious impacts on the environment of the Pacific Northwest than they are positive impacts.
These events are important, however, in that they provide for variation in hydrology and temperature as well as in other ancillary environmental phenomena. These variations regulate, for better or
worse, a complex intimately associated assortment of flora and fauna. It is the same regulation by which those organisms have evolved over time. Our perception of that regulation,
however, is tempered by our own ideas of good and bad. El Ni?o and La Ni?a are sometimes considered opposites, in reality their
effects are quite similar. The University of Florida (2004) reports that the most severe El Ni?o of the twentieth century occurred in the winter of 1982/1983. Worldwide some
$8 billion in damages were estimated (University of Florida, 2004). A recap of many of those damages, however, would occur at the end of the next decade, 1997/1998 (Zimmer,
1999). The damages which were incurred included, droughts, brush and forest fires, crop failure and consequent starvation, freshwater shortages, increases in the number and severity of cyclones, disruptions to
fisheries and destruction of coral reefs, flooding, mudslides, death inflicting downpours, floods, landslides, disease and malnutrition (University of Florida, 2004). One of the more obvious negative impacts which have
been associated with these phenomena in the Pacific Northwest has been the disruption of salmon migration. The deleterious impacts sustained by
the salmon migration as a result of El Ni?o is particularly evident in Canada where an estimated one-third of the countrys west coast sockeye salmon population failed to complete their
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