Tundra Articles

• Rainforests
  Forest
  Geography
  Fish
  Oil Spills
  New Species
   
  

  Mangrove

  Mangrove are woody trees or shrubs that grow in coastal habitats for which the term mangrove swamp also would apply. Mangrove plants occupy shallow water and intertidal zones in tropical and ... > more
• Storms
  Severe Weather
  Snow and Avalanches
  Global Warming
  Climate
  Geomagnetic Storms
   
  

  Winter storm

  A winter storm is a type of precipitation in which the dominant varieties of precipitation are forms that only occur at cold temperatures, such as snow or sleet, or a rainstorm where ground ... > more
• Water
  Recycling and Waste
  Drought
  Environmental Issues
  Drought Research
  Ecosystems
   
  

  Groundwater

  Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of geologic formations. A formation of rock/soil is called an aquifer when it can yield a useable ... > more
• Ecology
  Ecology Research
  Nature
  Ecosystems
  Environmental Issues
  Biology
   
  

  Ecology

  Ecology, or ecological science, is the scientific study of the distribution and abundance of living organisms and how the distribution and abundance are affected by interactions between the organisms ... > more
• Seeds
  Botany
  Nature
  Endangered Plants
  Ecology
  Agriculture and Food
   

  Seedbank

  Seedbanks store seeds as a source for planting in case seed reserves elsewhere should be destroyed. The seeds stored may be various in nature, such as those of food crops or those of rare species, to ... > more
• Geography
  Earth Science
  Earthquakes
  Geology
  Near-Earth Object Impacts
  Geomagnetic Storms
   
  

  Circle of latitude

  On the Earth, a circle of latitude or parallel is an imaginary east-west circle that connects all locations with a given latitude. The position on the circle of latitude is given by the longitude. ... > more
• Desert
  Geography
  Water
  Environmental Issues
  Pollution
  Drought Research
   
  

  Desert

  In geography, a desert is a landscape form or region that receives very little precipitation. Generally deserts are defined as areas that receive an average annual precipitation of less than 250 mm ... > more
• Nature
  Ecology
  Ecology Research
  New Species
  Exotic Species
  Extinction
   
  

  Ecological niche

  In ecology, a niche is a term describing the relational position of a species or population in an ecosystem. More formally, the niche includes how a population responds to the abundance of its ... > more
• Global Warming
  Nature of Water
  Ice Ages
  Climate
  Oceanography
  Snow and Avalanches
   
  

  Ice shelf

  An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface, typically in Antarctica or Greenland. The boundary ... > more
• Zoology
  Rodents
  Animals
  Exotic Species
  Earth Science
  Mammals
   
  

  Lemming

  Lemmings are small rodents, usually found in or near the Arctic. Together with the voles and muskrats, they make up the subfamily Arvicolinae (also known as Microtinae), which forms part of the ... > more
• Global Warming
  Early Climate
  Climate
  Ice Ages
  Fossils
  Environmental Issues
   
  

  Geologic temperature record

  This article is devoted to temperature changes in Earth's environment as determined from geologic evidence on multi-million to billion (109) year time scales. The last 3 million years have been ... > more
• Oceanography
  Geography
  Global Warming
  Ecosystems
  Water
  Earth Science
   
  

  Ocean current

  An ocean current is any more or less permanent or continuous, directed movement of ocean water that flows in one of the Earth's oceans. The currents are generated from the forces acting upon the ... > more

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