Avalanche Articles

• Automotive and Transportation
  Alternative Fuels
  Fossil Fuels
  Fuel Cells
  Energy and Resources
  Energy and the Environment
   
  

  Flexible-fuel vehicle

  A flexible-fuel vehicle (FFV) or dual-fuel vehicle (also sometimes called only flex-fuel) is an automobile that can typically alternate between two sources of fuel. A common example is a vehicle that ... > more
• Hurricanes and Cyclones
  Severe Weather
  Storms
  Weather
  Climate
  Natural Disasters
   
  

  2005 Atlantic hurricane season

  The 2005 Atlantic hurricane season unexpectedly became the most active Atlantic hurricane season in recorded history, shattering previous records on repeated occasions. The impact of the season was ... > more
• Geography
  Earth Science
  Global Warming
  Volcanoes
  Oceanography
  Severe Weather
   
  

  Bering Strait

  The Bering Strait is a sea strait between Cape Dezhnev, Russia, the easternmost point (169 degrees 43' W) of the Asian continent and Cape Prince of Wales, Alaska, the westernmost point (168 degrees ... > more
• Hurricanes and Cyclones
  Severe Weather
  Storms
  Weather
  Geography
  Natural Disasters
   
  

  Great Hurricane of 1780

  The Great Hurricane of 1780 is considered the deadliest Atlantic tropical cyclone of all time. About 22,000 people died when the storm pounded Barbados, Martinique, and Sint Eustatius in the Lesser ... > more
• Global Warming
  Environmental Issues
  Climate
  Nature
  Environmental Policy
  Air Quality
   
  

  Greenhouse gas

  Greenhouse gases are components of the atmosphere that contribute to the greenhouse effect. Some greenhouse gases occur naturally in the atmosphere, while others result from human activities such as ... > more
• Volcanoes
  Geology
  Energy and Resources
  Sports Science
  Natural Disasters
  Geography
   
  

  Igneous rock

  Igneous rocks are formed when molten rock (magma) cools and solidifies, with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive ... > more
• Environmental Policy
  Geography
  Environmental Issues
  Ecology
  Earth Science
  Global Warming
   

  Timeline of environmental events

  The timeline of environmental events is a historical account of events that have shaped humanity's perspective on the environment. This timeline includes some major natural events, man-made ... > more
• Severe Weather
  Storms
  Water
  Climate
  Global Warming
  Environmental Issues
   
  

  Cloud

  A cloud is a visible mass of condensed droplets or frozen crystals suspended in the atmosphere above the surface of the Earth or another planetary body. Clouds form when the invisible water vapor in ... > more
• Fossils
  Geology
  Origin of Life
  Extinction
  Geography
  Environmental Policy
   

  Paleozoic

  The Paleozoic Era is a major division of the geologic timescale, one of four geologic eras. The Paleozoic includes six geologic periods; from oldest to youngest -- the Cambrian, Ordovician, Silurian, ... > more
• Vitamin D
  Healthy Aging
  Optics
  Attention Deficit Disorder
  Geomagnetic Storms
  Sports Science
   
  

  Ultraviolet

  Ultraviolet (UV) radiation is electromagnetic radiation of a wavelength shorter than that of the visible region, but longer than that of soft X-rays. The Sun emits ultraviolet radiation in the UVA, ... > more

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