Avalanche Articles

• Tundra
  Birds
  Animals
  New Species
  Zoology
  Geography
   
  

  Snowy Owl

  The Snowy Owl is a large owl of the typical owl family Strigidae. It is also known in North America as the Arctic Owl or the Great White Owl. This huge yellow-eyed white bird is unmistakable. It is ... > more
• Weather
  Severe Weather
  Climate
  Atmosphere
  Hurricanes and Cyclones
  Global Warming
   
  

  Meteorology

  Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting. Meteorological phenomena are observable weather events which illuminate and are explained by ... > more
• Oceanography
  Geography
  Earth Science
  Water
  Ecosystems
  Ecology
   
  

  Ocean

  Though generally recognized as several 'separate' oceans, these waters comprise one global, interconnected body of salt water often referred to as the World Ocean or global ocean. This concept of a ... > more
• Global Warming
  Climate
  Environmental Issues
  Early Climate
  Nature
  Environmental Policy
   
  

  Global warming

  Global warming refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. The global average air temperature ... > more
• Water
  Floods
  Geography
  Oceanography
  Drought Research
  Global Warming
   
  

  River

  A river is a large natural waterway. The source of a river may be a lake, a spring, or a collection of small streams, known as headwaters. From their source, all rivers flow downhill, typically ... > 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
• Tundra
  Animals
  Mammals
  Global Warming
  Endangered Animals
  Hurricanes and Cyclones
   
  

  Polar Bear

  The polar bear, also known as the white bear, northern bear, sea bear, or nanuq in some Inuit languages, is a species of bear that is native to the Arctic and the apex predator within its range. Its ... > more
• Global Warming
  Air Quality
  Climate
  Nature
  Forest
  Organic Chemistry
   
  

  Carbon dioxide

  Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. It is often referred to by its formula CO2. It is present in the Earth's atmosphere at a low concentration and acts ... > more
• Water
  Geography
  Ecosystems
  Global Warming
  Ecology
  Floods
   
  

  Lake

  A lake is a body of water or other liquid of considerable size surrounded entirely by land. A vast majority of lakes on Earth are fresh water, and most lie in the Northern Hemisphere at higher ... > more
• Geology
  Fossils
  Earth Science
  Origin of Life
  Early Climate
  Earthquakes
   
  

  Precambrian

  The Precambrian is an informal name for the eons of the geologic timescale that came before the current Phanerozoic eon. It spans from the formation of Earth around 4500 Ma (million years ago) to the ... > more

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