Avalanche Articles

• 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
• Global Warming
  Climate
  Environmental Policy
  Environmental Issues
  Environmental Science
  Energy and the Environment
   
  

  IPCC Fourth Assessment Report

  The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) is the fourth in a series of reports on climate change. Two of the three reports (Working groups I and II) have ... > more
• Forest
  Rainforests
  Exotic Species
  Tundra
  Geography
  Wildfires
   
  

  Taiga

  Taiga is a biome characterized by coniferous forests. Covering most of inland Alaska, Canada, Sweden, Finland, inland Norway, northern Kazakhstan and Russia (especially Siberia), as well as parts of ... > more
• Geography
  Tundra
  Mammals
  Wild Animals
  Nature
  Animals
   
  

  Reindeer

  The reindeer, known as caribou when wild in North America, is an Arctic and Subarctic-dwelling deer. About 1 million live in Alaska, and a comparable number live in northern Canada. There are an ... > more
• Water
  Oceanography
  Landslides
  Global Warming
  Floods
  Environmental Issues
   
  

  Erosion

  Erosion is the displacement of solids (soil, mud, rock and other particles) by the agents of wind, water or ice, by downward or down-slope movement in response to gravity or by living organisms (in ... > more
• Geography
  Ice Ages
  Geology
  Global Warming
  Exotic Species
  Climate
   
  

  Varve

  A varve is an annual layer of sediment or sedimentary rock. Terms such as "annually laminated" are synonymous with varve. Of the many rhythmites found in the geological record, varves are one of the ... > more
• Weather
  Severe Weather
  Hurricanes and Cyclones
  Storms
  Global Warming
  Geomagnetic Storms
   
  

  Weather forecasting

  Weather forecasting is the application of current technology and science to predict the state of the atmosphere for a future time and a given location. Weather forecasts are made by collecting as ... > 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
• Volcanoes
  Geography
  Rainforests
  Environmental Policy
  Global Warming
  Climate
   
  

  Mount Kilimanjaro

  Kilimanjaro is a mountain in northeastern Tanzania. Kilimanjaro is the tallest free-standing mountain rise in the world, rising 4600 meters (15,000 ft) from the base, and includes the highest peak in ... > 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

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