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Understanding Earth's Deep Past
  • Language: en
  • Pages: 153

Understanding Earth's Deep Past

There is little dispute within the scientific community that humans are changing Earth's climate on a decadal to century time-scale. By the end of this century, without a reduction in emissions, atmospheric CO2 is projected to increase to levels that Earth has not experienced for more than 30 million years. As greenhouse gas emissions propel Earth toward a warmer climate state, an improved understanding of climate dynamics in warm environments is needed to inform public policy decisions. In Understanding Earth's Deep Past, the National Research Council reports that rocks and sediments that are millions of years old hold clues to how the Earth's future climate would respond in an environment ...

In the Shadow of the Dinosaurs
  • Language: en
  • Pages: 456

In the Shadow of the Dinosaurs

The early Mesozoic period was a critical period in the evolution of life on land when most of todays major groups of terrestrial vertebrates arose and dinosaurs and pterosaurs rose to prominence. In recent years this period has received a great deal of attention from palaeontologists, and it is now felt that the small vertebrates which lived in the shadows of the first dinosaurs tell us a great deal about the evolution of modern terrestrial ecosystems. This book is an attempt to collate all the information on the small vertebrates and features contributions by experts with international reputations in their fields. There are chapters on the taxonomy and phylogeny of the key vertebrate groups followed by a section dealing with the most significant fossiliferous assemblages worldwide. The final section looks at how faunal turnover at this time is measured and examines the possibility of mass extinctions.

Current Catalog
  • Language: en
  • Pages: 1550

Current Catalog

  • Type: Book
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  • Published: Unknown
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  • Publisher: Unknown

First multi-year cumulation covers six years: 1965-70.

The Beginning of the Age of Dinosaurs
  • Language: en
  • Pages: 406

The Beginning of the Age of Dinosaurs

Around 210 million years ago, life on Earth experienced sweeping changes. Many archaic reptiles and mammalian predecessors became extinct and were replaced by dinosaurs, pterosaurs, crocodiles, turtles, mammals, and essentially all of the major modern vertebrate groups except the birds. This period of change, which took place over a period of approximately five to ten million years, ushered in the beginning of the 'Age of Dinosaurs,' a period that lasted 160 million years to the end of the Cretaceous 65 million years ago. In the past decade, paleontologists have come to know a great deal more about this crucial interval of time. New discoveries, ideas, and insights from scientists in many re...

The Nonmarine Triassic
  • Language: en
  • Pages: 522
A to Z of Earth Scientists, Updated Edition
  • Language: en
  • Pages: 288

A to Z of Earth Scientists, Updated Edition

A to Z of Earth Scientists, Updated Edition is a comprehensive A to Z reference of Earth scientists in areas including plate tectonics, climate change, and planetary science. Designed for high school through early college students, this is an ideal reference of notable Earth scientists from the 19th century to the present. Featuring nearly 200 entries and 100 black-and-white photographs, this title uses the device of biography in order to put a human face on science—a method that adds immediacy to the prose for the high school student who may have an interest in pursuing a career in the earth sciences. People covered include: James Hutton (1726–1797) William Smith (1769–1839) Charles Lyell (1797–1875) Mary Anning (1799–1847) Inge Lehmann (1888–1993) Walter Alvarez (1911–1988) Doris Malkin Curtis (1914–1991) Marie Tharp (1920–2006) David Keeling (1928–2005) Dawn Wright (1961–present)

Agriculture Handbook
  • Language: en
  • Pages: 276

Agriculture Handbook

  • Type: Book
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  • Published: 1949
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  • Publisher: Unknown

Set includes revised editions of some issues.

Public Roads
  • Language: en
  • Pages: 562

Public Roads

  • Type: Book
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  • Published: 1974
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  • Publisher: Unknown

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Directory of Organization and Field Activities of the Department of Agriculture, 1956
  • Language: en
  • Pages: 384
Directory of Organization and Field Activities of the Department of Agriculture, 1959
  • Language: en
  • Pages: 374

Directory of Organization and Field Activities of the Department of Agriculture, 1959

  • Type: Book
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  • Published: 1959
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  • Publisher: Unknown

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