Encyclopedia of Earth

Welcome to the Encyclopedia of Earth, an electronic reference about the Earth, its natural environments, and their interaction with society. The Encyclopedia is a free, expert-reviewed collection of articles written by scholars, professionals, educators, and experts who collaborate and review each other's work. The articles are written in non-technical language and are useful to students, educators, scholars, professionals, as well as to the general public.

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Healthy Community Design

The way we design and build our communities can affect our physical and mental health. Healthy community design integrates evidence-based health strategies into community planning, transportation, and land-use decisions. Healthy Community Design...

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Tox21: screening chemicals

In December 2011, a high-speed robotic screening system, aimed at protecting human health by improving how chemicals are tested in the U.S., began testing 10,000 compounds  for potential...

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  • Introduction This article reviews and synthesizes our current knowledge about the impact of Arctic sea ice ...
  • Overview Dugongs were once common throughout the shallow coastal waters of East Malaysia (northeast ...
  • Introduction Patterns of energy have changed dramatically since the onset of the Industrial Revolut...
  • A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z A back to top Aunger, Robert. 2010. Types of...
  • The Energy, Growth and Pollution network was established in 2003 to link together historians working on the hi...
  • In the 19th and early 20th centuries, several scientists suggested that the continental masses had the ability...
  • The Permian period lasted from 290 to 248 million years ago and was the last period of the Paleozoic Era. The ...

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