Avalanche Articles

• 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
• Early Climate
  Climate
  Ice Ages
  Global Warming
  Geology
  Environmental Issues
   
  

  Paleoclimatology

  Paleoclimatology is the study of climate change taken on the scale of the entire history of the earth. Glaciers are a widely employed instrument in paleoclimatology. The ice in glaciers has hardened ... > more
• Oceanography
  Water
  Floods
  Geography
  Global Warming
  Desert
   
  

  Sediment

  Sediment is any particulate matter that can be transported by fluid flow and which eventually is deposited as a layer of solid particles on the bed or bottom of a body of water or other liquid. ... > more
• Geography
  Forest
  Earthquakes
  Water
  Weather
  Global Warming
   
  

  Himalayas

  The Himalayas, also Himalaya, are a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau. By extension, it is also the name of the massive mountain system which ... > more
• Weather
  Severe Weather
  Geomagnetic Storms
  Hurricanes and Cyclones
  Storms
  Global Warming
   
  

  Weather

  Weather is a term that encompasses phenomena in the atmosphere of a planet. The term is normally taken to mean the activity of these phenomena over short periods of time, usually no more than a few ... > more
• Floods
  Natural Disasters
  Hurricanes and Cyclones
  Severe Weather
  Landslides
  Geography
   
  

  Flood

  A flood is an overflow of water, an expanse of water submerging land, a deluge. Since prehistoric times people have lived by the seas and rivers for the access to cheap and quick transportation and ... > more
• Acid Rain
  Rainforests
  Pollution
  Air Pollution
  Forest
  Environmental Science
   
  

  Rain

  Rain is a form of precipitation, other forms of which include snow, sleet, hail, and dew. Rain plays a major role in the hydrologic cycle in which moisture from the oceans evaporates, condenses into ... > 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
• Acid Rain
  Air Pollution
  Pollution
  Air Quality
  Soil Types
  Forest
   
  

  Acid rain

  Acid rain is defined as any type of precipitation with a pH that is unusually low. Dissolved carbon dioxide dissociates to form weak carbonic acid giving a pH of approximately 5.6 at typical ... > more
• Tundra
  Global Warming
  Climate
  Geography
  Forest
  Rainforests
   
  

  Tundra

  In physical geography, tundra is an area where the tree growth is hindered by low temperatures and short growing seasons. There are three types of tundra: Arctic tundra, Antarctic tundra, and alpine ... > more

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