Tundra Articles

• Water
  Nature of Water
  Drought Research
  Environmental Issues
  Ecosystems
  Pollution
   
  

  Water

  Water is a tasteless, odorless, and nearly colorless (it has a slight hint of blue) substance in its pure form that is essential to all known forms of life and is known also as the most universal ... > more
• Nature
  Sustainability
  Ecology
  Biodiversity
  Environmental Policy
  Endangered Plants
   
  

  Conservation ethic

  The conservation ethic is an ethic of resource use, allocation, exploitation, and protection. Its primary focus is upon maintaining the health of the natural world: its forests, fisheries, habitats, ... > more
• Wildfires
  Natural Disasters
  Rainforests
  Ecology Research
  Forest
  Ecology
   
  

  Wildfire

  A wildfire, also known as a forest fire, vegetation fire, grass fire, brush fire, or bushfire (in Australasia), is an uncontrolled fire often occurring in wildland areas, but which can also consume ... > more
• Geography
  Geology
  Earth Science
  Earthquakes
  Oceanography
  Drought Research
   
  

  Pangaea

  Pangaea or Pangea is the name given to the supercontinent that existed during the Paleozoic and Mesozoic eras, before the process of plate tectonics separated each of the component continents into ... > more
• Earthquakes
  Natural Disasters
  Tsunamis
  Energy and the Environment
  Renewable Energy
  Environmental Science
   
  

  Moment magnitude scale

  The moment magnitude scale was introduced in 1979 by Tom Hanks and Hiroo Kanamori as a successor to the Richter scale and is used by seismologists to compare the energy released by ... > more
• Fish
  Marine Biology
  Fisheries
  Sea Life
  Geography
  Wild Animals
   
  

  Seahorse

  Hippocampus is a genus of fish known as Seahorses (family Syngnathidae). Seahorses range in size from 16 mm (the recently discovered Hippocampus denise) to 35 cm. They are notable for being one of ... > more
• Water
  Weather
  Pollution
  Severe Weather
  Climate
  Environmental Issues
   
  

  Precipitation (meteorology)

  In meteorology, precipitation is any form of water that falls from the sky as part of the weather to the ground. This includes snow, rain, sleet, freezing rain, hail, and virga. Precipitation is a ... > more
• Severe Weather
  Weather
  Storms
  Floods
  Hurricanes and Cyclones
  Tornadoes
   
  

  Severe weather terminology (United States)

  This article describes severe weather terminology used by the U.S. National Weather Service. The National Weather Service has developed a multi-tier concept for forecasting all types of hazardous ... > more
• Desert
  Geography
  Floods
  Oceanography
  Renewable Energy
  Earth Science
   
  

  Dune

  In physical geography, a dune is a hill of sand built by eolian processes. Bare dunes are subject to shifting location and size based on their interaction with the wind. The "valley" or trough ... > more
• Oceanography
  Geography
  Global Warming
  Coral Reefs
  Floods
  Geology
   
  

  Geology of the Capitol Reef area

  The exposed geology of the Capitol Reef area presents a record of mostly Mesozoic-aged sedimentation in an area of North America in and around Capitol Reef National Park. Nearly 10,000 feet (3,000 m) ... > more

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