Avalanche Articles

• Hurricanes and Cyclones
  Severe Weather
  Storms
  Floods
  Geography
  Natural Disasters
   
  

  Hurricane Agnes

  Hurricane Agnes was the first tropical storm and first hurricane of 1972 Atlantic hurricane season. A rare June hurricane, it made landfall on Florida before moving northeastward and hitting New ... > more
• Water
  Drought Research
  Ecosystems
  Environmental Issues
  Pollution
  Sustainability
   
  

  Water resources

  Water resources are sources of water that are useful or potentially useful to humans. It is important because it is needed for life to exist. Many uses of water include agricultural, industrial, ... > more
• Dinosaurs
  Geography
  Environmental Policy
  Charles Darwin
  Origin of Life
  Paleontology
   

  Jurassic

  The Jurassic period is a major unit of the geologic timescale that extends from about 200 Ma (million years ago) at the end of the Triassic to 146 Ma at the beginning of the Cretaceous. The Jurassic ... > more
• Geology
  Geography
  Earthquakes
  Oceanography
  Earth Science
  Natural Disasters
   
  

  Geology of the Alps

  The Alps form a part of a Tertiary orogenic belt of mountain chains along the southern margin of the continents Asia and Europe, called the Alpide belt. This belt of mountain chains was formed during ... > more
• Earthquakes
  Natural Disasters
  Tsunamis
  Floods
  Geology
  Global Warming
   
  

  Seismic retrofit

  Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Seismic retrofit techniques will ... > more
• Global Warming
  Ice Ages
  Geomagnetic Storms
  Climate
  Severe Weather
  Storms
   
  

  Sun dog

  A sun dog or sundog (scientific name parhelion) is a relatively common atmospheric optical phenomenon associated with the reflection/refraction of sunlight by the numerous small ice crystals that ... > more
• Hurricanes and Cyclones
  Severe Weather
  Accident and Trauma
  Natural Disasters
  Sports Medicine
  Healthy Aging
   
  

  Social effects of Hurricane Katrina

  The impact and aftermath of Hurricane Katrina led to one of the most severe humanitarian crises in the history of the United States. In addition to the over 1,300 fatalities caused by Katrina over ... > more
• Soil Types
  Water
  Food and Agriculture
  Agriculture and Food
  Environmental Issues
  Drought Research
   
  

  Irrigation

  Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops. The water source for irrigation may be a nearby or distant body of ... > more
• Coral Reefs
  Marine Biology
  Fish
  Sea Life
  Ecology
  Global Warming
   
  

  Artificial reef

  An artificial reef is a man-made, underwater structure, typically built for the purpose of promoting marine life in areas of generally featureless bottom. Artificial reefs may also serve to improve ... > more
• Earthquakes
  Geology
  Natural Disasters
  Geography
  Earth Science
  Tsunamis
   
  

  Geology of the Himalaya

  The Geology of the Himalaya is a record of the most dramatic and visible creations of modern plate tectonic forces. The Himalayas, which stretch over 2400 km are the result of an ongoing orogeny, the ... > more

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