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The fastest mass extinction in earth's history.


Seven out of ten biologists believe the world is now in the midst Adv. 1. in the midst - the middle or central part or point; "in the midst of the forest"; "could he walk out in the midst of his piece?"
midmost
 of the fastest mass extinction mass extinction, the extinction of a large percentage of the earth's species, opening ecological niches for other species to fill. There have been at least ten such events.  of living things in the 4.5 billion-year history of the planet, according to a poll conducted by the American Museum of Natural History American Museum of Natural History, incorporated in New York City in 1869 to promote the study of natural science and related subjects. Buildings on its present site were opened in 1877.  and the Louis Harris survey research firm. That makes it faster even than the crash which occurred when the dinosaurs died some 65 millions years ago. Unlike that and other mass extinctions of the pre-human past, the current one is the result of human activity, and not natural phenomena, say the scientists.

The scientists surveyed rated biodiversity loss as a more serious environmental problem than the depletion of the ozone layer, global warming, or pollution and contamination. A majority (70 percent) said they believe that during the next 30 years as many as one-fifth of all species alive today will become extinct, and a third of the respondents think as many as half the species on Earth will die out in that time. "This survey is a dramatic wake-up call to individuals, governments, and institutions that we are facing a truly formidable threat not only to the health of the planet but also to humanity's own well-being and survival - a threat that is virtually unrecognized by the public at large," commented Museum of Natural History president Ellen V. Futter Ellen V. Futter is President of the American Museum of Natural History. She previously served as President of Barnard College for thirteen years.

Ms. Futter was graduated Phi Beta Kappa, magna cum laude, from Barnard in 1971. She earned her J.D.
.

The Biodiversity in the Next Millennium survey was administered to 400 members of the American Institute of Biological Sciences The American Institute of Biological Sciences (AIBS) is a nonprofit scientific association dedicated to advancing biological research and education. Founded in 1947 as a part of the National Academy of Sciences, AIBS became an independent, member-governed organization in the 1950s. . Respondents included experts in biochemistry, botany, conservation biology, entomology entomology, study of insects, an arthropod class that comprises about 900,000 known species, representing about three fourths of all the classified animal species. , genetics, marine biology, microbiology, molecular biology molecular biology, scientific study of the molecular basis of life processes, including cellular respiration, excretion, and reproduction. The term molecular biology was coined in 1938 by Warren Weaver, then director of the natural sciences program at the Rockefeller , neuroscience, physiology, and other fields. A parallel survey was given to 100 middle-school and high-school science teachers drawn from the National Science Teachers' Association (NSTA NSTA National Science Teachers Association
NSTA National School Transportation Association
NSTA National Spasmodic Torticollis Association
NSTA National Substitute Teachers Alliance (Fresno, California) 
) and to 1,000 members of the general public, in order to gauge differences in their views on biodiversity issues.

The comparisons revealed that "the general public is relatively unaware of the loss of species and the threats that it poses," said museum spokesman Elizabeth Chapman. The survey also found that "while science teachers have a much clearer sense of the dimensions and urgency of the biodiversity crisis than the general public, more than 50 percent of science teachers do not believe that we are in the midst of a mass extinction, and only 38 percent describe themselves as being very familiar with the concept of biodiversity."

"Notwithstanding the public's lack of recognition of the significance of biodiversity loss, scientists feel that it is critical to act now to stem the tide Stem The Tide

An attempt to stop a prevailing trend. Sometimes referred to as "stop the bleeding."

Notes:
If a stock is continually falling, stemming the tide would be an attempt to halt the free fall and change its direction.
See also: Reversal, Trend
 of extinction," said Chapman. "Overwhelmingly, scientists think that the threat of the biodiversity crisis is underestimated by most segments of society: 95 percent think the general public underestimates the threat; 87 percent think the government underestimates it; 80 percent think the media does; and 58 percent feel that educators do not accurately recognize it."

Both the scientific experts and the science teachers were willing to admit that they themselves are part of the communication problem. Seventy percent of the scientists and 67 percent of the science teachers say they have not done an adequate job of disseminating information about the consequences of the biodiversity crisis. "I can think of no generation of scientists that has faced a greater challenge than we confront today, for no other generation has stood at the cross roads between the continued existence of the Earth's biological diversity and an irrevocable catastrophe to the biota biota /bi·o·ta/ (bi-o´tah) all the living organisms of a particular area; the combined flora and fauna of a region.

bi·o·ta
n.
The flora and fauna of a region.
," commented Museum Provost of Science Michael J. Novacek.
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Copyright 1998, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Author:Ayres, Ed
Publication:World Watch
Date:Sep 1, 1998
Words:569
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