Geographical Articles

• Severe Weather
  Weather
  Storms
  Tornadoes
  Floods
  Hurricanes and Cyclones
   
  

  Storm Prediction Center

  The Storm Prediction Center is responsible for forecasting (identifying, describing, and quantifying) the risk of severe weather caused by severe convective storms (specifically, those producing ... > more
• New Species
  Exotic Species
  Trees
  Animals
  Invasive Species
  Nature
   

  Eucalypt

  Eucalypts are tree species belonging to three closely related genera, Angophora, Corymbia and Eucalyptus. Of these, Eucalyptus has the most species, the most-widely planted species and the biggest ... > more
• Wildfires
  Natural Disasters
  Forest
  Environmental Science
  Oil Spills
  Ecology
   
  

  Smoulder

  Smouldering (or smoldering in American spelling) combustion is a flameless form of combustion, deriving its heat from oxidations occurring on the surface of a solid fuel. Common examples are the ... > more
• Pollution
  Air Quality
  Air Pollution
  Environmental Issues
  Environmental Science
  Water
   
  

  Humidity

  Humidity is the concentration of water vapor in the air. The concentration can be expressed as absolute humidity, specific humidity, or relative humidity. Relative humidity is the most frequently ... > more
• Energy and the Environment
  Solar Energy
  Renewable Energy
  Geomagnetic Storms
  Environmental Science
  Graphene
   
  

  Solar cell

  A solar cell (or a "photovoltaic" cell) is a device that converts photons from the sun (solar light) into electricity. In general, a solar cell that includes both solar and nonsolar sources of light ... > 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
• Tornadoes
  Severe Weather
  Climate
  Weather
  Natural Disasters
  Storms
   
  

  Super Outbreak

  The Super Outbreak (sometimes called Jumbo Outbreak) is the largest tornado outbreak on ... > more
• Storms
  Severe Weather
  Weather
  Environmental Science
  Renewable Energy
  Geomagnetic Storms
   
  

  Thunderstorm

  A thunderstorm, or an electrical storm, is a form of weather characterized by the presence of lightning and its attendant thunder. It is usually accompanied by copious rainfall, hail, or rarely, ... > more
• Pollution
  Pests and Parasites
  Environmental Policy
  Environmental Issues
  Geography
  Nature
   
  

  DDT

  DDT was the first modern pesticide and is arguably the most well known organic pesticide. Overall, it is known that DDT concentrates in biological systems (particularly in body fat), that it is a ... > more
• Extinction
  Endangered Animals
  Endangered Plants
  New Species
  Nature
  Exotic Species
   
  

  Extinction

  In biology and ecology, extinction is the cessation of existence of a species or group of taxa, reducing biodiversity. The moment of extinction is generally considered to be the death of the last ... > more

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