The authors of this book have studied the changes in the chemi cal composition of the atmosphere during geological history with regard to its close relationship to the evolution of the Earth's sedimentary shell. Beginning in 1977, the initial results of this study have been published as articles and parts of several monographs. Since new material clarifying atmospheric evolution have been obtained recently, the necessity has arisen to write a book treating the major results of investigations of the history of the atmosphere. In this book much consideration is given to the interrelation between the evolution of animate nature and changes in atmospheric composition. It proved be necessary to study the history of the two components of atmospheric air: carbon dioxide and oxygen. Attempts have been made to repre sent quantitatively the conclusions drawn here, i. e. to determine by calculation the changes in the amount of carbon dioxide and oxygen over much of the history of the atmosphere. These calculations, performed in most detail for the Phanerozoic and to a lesser degree for the Late Precambrian, are supplemented with estimates of changes in the chemical composition of the atmosphere in the Early Precambrian. Comparisons have been drawn between the changes in the chemical composition of the atmosphere and the development of animate nature, a close relationship being found to exist between the stages of the evolution of organisms and variations in the chemical composition of the atmosphere.
Reimann , G. A .; Grandy , J. D .; Eddy , T. L .; Anderson , G. L. In Nuclear and Hazardous Waste Management Spectrum '92 ( Proc . ) ; American Nuclear Society , Inc. , La Grange Park , IL , 1992 ; Vol . 2 , pp . 1083-1088 . 3 .
In 1991 , the Spence - Moriarty property ( 37,000 acres adjacent tə the Inberg - Roy ) was purchased . Now administering enough winter habitat , WGFD removed the thirteen miles of elk fence . WGFD sets herd - unit objectives based on ...
A stock solution of PCP was prepared at an elevated pH of 11 with 1 N NaOH to increase the solubility of PCP in the aqueous phase . For the partial chemical oxidation pretreatment by Fenton's Reagent , the ferrous sulfate solution ...
Amy Griffin Monica Mouton Sanders M.Angela Casady Jennifer Smith Burden Tom Luster See also: Adolescent Pregnancy and Prevention; Prenatal Decision Making by Adolescents; Sexual Abstinence References and Further Reading Child Trends.
KEY BENEFIT: The first edition of Environment: The Science behind the Stories made the biggest splash of any new entry in environmental science over the past thirty years.
Jackson , P.M. , The Political Economy of Bureaucracy , 1981 , Philip Allan , Oxford . Jacobs , Michael , Environment , Sustainable Development and the Politics of the Future , 1991 , Pluto Press , London . Jordan , Andrew , ' Financing ...
Johanson , R. L. , Imhoff , J. C. , Davis , H. H. , Jr. , Kittle , J. L. , Jr. , and Donigian , A. S. , Jr. , User's Manual for Hydrological Simulation Program FORTRAN ( HSPF ) . Release No. 8 , EPA - 600 / 3-84-066 , U.S. Environmental ...
A1 commented that Casey is traditionally considered to have lower morale than any other station , because of the tunnel design of the old station ( now superseded and removed ) and because it is the least scenic of the Australian ...
Chapters cover the practical application of pollution and contaminant control technology
The Sustainability Challenge John Snyder, United Nations Environment Programme, International Ecotourism Society. Foreword The rapid growth of tourism over recent decades presents both challenges and opportunities .