Avalanche Articles

• Geography
  Water
  Grassland
  Coral Reefs
  Environmental Policy
  Exotic Species
   
  

  Great Lakes

  The Great Lakes are a group of five large lakes on or near the United States-Canadian border. They are the largest group of fresh water lakes on the earth and the Great Lakes-St. Lawrence system is ... > more
• Tornadoes
  Severe Weather
  Hurricanes and Cyclones
  Natural Disasters
  Storms
  Climate
   
  

  Easter Week 2006 Tornado Outbreak Sequence

  The Easter Week 2006 Tornado Outbreak Sequence was a tornado outbreak sequence during the days leading up to Easter and continued into the first week after Easter. It was the third major outbreak of ... > more
• Volcanoes
  Natural Disasters
  Climate
  Global Warming
  Environmental Issues
  Floods
   

  Climate changes of 535-536

  In the years 535 and 536, several remarkable aberrations in world climate took place. The Byzantine historian Procopius recorded of 536, "during this year a most dread portent took place. For the sun ... > more
• Mining
  Geology
  Earth Science
  Geochemistry
  Oceanography
  Earthquakes
   
  

  Quartz

  Quartz is one of the most common minerals in the Earth's continental crust. It belongs to the hexagonal crystal system, and is made up of silica (SiO2) tetrahedra. Quartz has a hardness of 7 on the ... > more
• Caving
  Geography
  Global Warming
  Water
  Earth Science
  Rainforests
   
  

  Cave

  A cave is a natural underground void large enough for an adult human to enter. Some scientists stipulate that it must be large enough that some portion of it will not receive daylight; however, in ... > more
• Weather
  Severe Weather
  Geography
  Climate
  Hurricanes and Cyclones
  Storms
   
  

  Surface weather analysis

  Weather front is, in meteorology, a boundary between two air masses with differing characteristics (e.g., air temperature or ... > more
• Civil Engineering
  Geology
  Earthquakes
  Engineering
  Natural Disasters
  Energy Technology
   

  Engineering geology

  Engineering Geology is the application of the science of geology to the understanding of geologic phenomena and the engineering solution of geologic hazards and other geologic problems for ... > more
• Hurricanes and Cyclones
  Severe Weather
  Earth Science
  Climate
  Geomagnetic Storms
  Weather
   
  

  Season

  A season is one of the major divisions of the year, generally based on yearly periodic changes in weather. In temperate and polar regions generally four seasons are recognized: spring, summer, ... > more
• Endangered Animals
  Extinction
  Endangered Plants
  Nature
  New Species
  Ecology
   
  

  Endangered species

  An endangered species is a population of an organism (usually a taxonomic species), which because it is either few in number or threatened by changing environmental or predation parameters, leaving ... > more
• Climate
  Global Warming
  Early Climate
  Ice Ages
  Environmental Issues
  Environmental Policy
   
  

  Temperature record of the past 1000 years

  The temperature record of the past 1000 years describes the reconstruction of temperature for the last 1000 years on the Northern Hemisphere. A reconstruction is needed because a reliable surface ... > more

Search ScienceDaily