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The Dirty Dozen - Toxic Chemicals and the Earth's Future (Hardcover, New)
Loot Price: R2,290
Discovery Miles 22 900
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The Dirty Dozen - Toxic Chemicals and the Earth's Future (Hardcover, New)
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Forty years after the publication of Rachel Carson's Silent Spring,
this important study examines the history, industrial uses, and
harmful effects of the twelve most commonly used organochloride
chemicals. All have been fully or partially banned by the Stockholm
Protocol, an international treaty signed by about 120 countries in
December 2000. Among the twelve are the dioxins (the active
ingredient in Agent Orange) and polychlorinated byphenyls (PCBs),
which are toxic in minute quantities. Johansen pays special
attention to the Inuit of the Arctic, where these chemicals have
been bio-accumulating to dangerous levels, moving up the food chain
to a degree of toxicity that some Inuit mothers are no longer able
to safely breast-feed their infants. The polar stratospheric ozone
has been devastated by emissions of chlorofluorocarbons (CFCs), and
new scientific findings connect global warming near the Earth's
surface to significant cooling in the stratosphere. This synergy
aggravates ozone depletion because the chemical reactions that
destroy the ozone become more energetic as temperatures drop.
Synthetic toxins have taken their toll on minority ethnic groups in
the United States, and persistent organic pollutants have inflicted
physiological damage on humans and other animals. Finally, Johansen
explores the estrogenic effects of such chemicals. Sperm counts
have declined as much as 50% in 50 years.
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