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The Earth in Transition
A group of outstanding environmental scientists has compiled a collection of case studies that illustrate the changes being wrought on the biosphere by the human presence.
Cattle in the Backlands
Brazil has the second-largest cattle herd in the world and is a major exporter of beef. While ranching in the Amazon—and its destructive environmental consequences—receives attention from both the media and scholars, the states of Mato Grosso and Mato Grosso do Sul actually host the most cattle. A significant beef producer in Brazil beginning in the late nineteenth century, the region served as a laboratory for raising cattle in the tropics, where temperate zone ranching practices do not work. Mato Grosso ranchers and cowboys transformed ranching’s relationship with the environment, including the introduction of an exotic cattle breed—the Zebu—that now dominates Latin American trop...
Safety Evaluation of Certain Food Additives and Contaminants
This volume contains monographs prepared at the sixty-eighth meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA) which met in Geneva Switzerland from 19 to 28 June 2007. The toxicological monographs in this volume summarize the safety data on a number of food additives: acidified sodium chlorite asparaginase from Aspergillus oryzae expressed in Aspergillus oryzae carrageenan and processed Euchema seaweed cyclotetraglucose and cyclotetraglucose syrup isoamylase from Pseudomonas amyloderamosa magnesium sulfate phospholipase A1 from Fusarium venenatum expressed in Aspergillus oryzae sodium iron(III) ethylenediaminetetraacetic acid (EDTA) and steviol glycosides. Monographs on...
