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Sto caricando le informazioni... An Appalachian Tragedy: Air Pollution and Tree Death in the Eastern Forest of North Americadi Harvard Ayers
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All along the Appalachian Mountains, from Maine to Georgia, trees are dying. Spruce and fir are dead along the ridges, the butternut is nearly extinct, and hemlocks are in a desperate struggle for life. Weakened by decades of air pollution that have brought acid rain, deadly smog, and excess nitrogen, and by cell-destroying ultraviolet rays from a thinning ozone layer, the magnificent Appalachian forests are no longer able to fight off the bugs, blights, and bad weather that afflict forests everywhere. Instead, in these mountains, the trees are dying in unprecedented numbers -- with death and decline affecting virtually all species in every part of the range. Yet relatively few people are aware of this ecological calamity in the making, due in large part to the efforts of the forest products industry, and their advocates in government, to downplay the crisis by manipulating statistics and confusing the issue.With stunning full-color photography and an impassioned text, An Appalachian Tragedy sets the record straight. Drawing on the talents of a noted photojournalist and a distinguished group of writers, this powerful book documents the damage that has already been done and warns of the fearful consequences for the future. Non sono state trovate descrizioni di biblioteche |
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Google Books — Sto caricando le informazioni... GeneriSistema Decimale Melvil (DDC)577.3Natural sciences and mathematics Life Sciences, Biology Ecology Forest ecologyClassificazione LCVotoMedia: Nessun voto.Sei tu?Diventa un autore di LibraryThing. |