[PDF] Life, Temperature, and the Earth ↠ David Schwartzman – PDF, Kindle ePUB & DOC Online
Ta that were either ignored or navailable at the time the hypothesis was developed Schwartzman argues that the Earth's climatic temperature has been biologically regulated amidst the backdrop of variable volcanic outgassing and an evolving sun The key to this regulation discussed here in depth has been the progressive increase in life's promotion of weathering on land over geologic time The book is the first to take note of strong evidence for much higher temperatures prior to about two billion
years ago and their role in constraining the evolution of microbes and delaying the emergence of complex multicellular lifeSchwartzman sets ago and their role in constraining the evolution of microbes and delaying the emergence of complex multicellular lifeSchwartzman sets stage by introducing his theory of biospheric evolution and outlining the development of the Gaia concept during the 1980s and. and outlining the development of the Gaia concept during the 1980s and. .
The idea that living things
and the atmosphere oceans the atmosphere oceans and soils comprise an interactive self regulating system the Gaia concept first proposed nearly thirty years ago Since then researchers have been seeking new connections between life and the global environment David Schwartzman contributes to that search by examining how the Earth's biosphere regulates itself over geologic time Emphasizing long term geologic trends not the short term perturbations that have received so much media attention eg the so called greenhouse effect the author presents and elucidates his theory of biospheric evolution Life Temperature and the Earth pdates and modifies important aspects of the Gaia hypothesis in light of geochemical geophysical mathematical and paleontological da.
comprise an self regulating system Gaia concept
soils comprise an
Free download × PDF, eBook or Kindle ePUB ä David Schwartzman1990s He then presents a systematic exposition of the WEATHERING PROCESS DISCUSSING THE HABITABILITY OF THE EARTH OVER process discussing the habitability of the Earth over time and the role of such abiotic factors as tectonics and the carbon geodynamic cycle in climatic evolution The final third of the book turns to a reinterpretation of the surface temperature history of the Earth positing a much warmer Precambrian Earth surface than conventionally believed and discussing the implications of this fact to evolutionary biology and bioastronomy the search for life elsewhere in the niverseDetermining discussing the implications of this fact to evolutionary biology and bioastronomy the search for life elsewhere in the niverseDetermining history of climate and investigating the self organization of the biosphere Life Temperature and the Earth explores the very foundations of environmental
science and illuminates the evolution of life itse.and illuminates the evolution of life itse. .