Earth Science Articles

• Global Warming
  Geomagnetic Storms
  Ice Ages
  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
  Weather
  Storms
  Geography
  Climate
   
  

  Hurricane Andrew

  Hurricane Andrew was one of the most destructive hurricanes ever to hit the United States. It raged from August 16 to August 28 during the 1992 Atlantic hurricane season, impacting the northwestern ... > more
• Insects (including Butterflies)
  Pests and Parasites
  Animals
  Agriculture and Food
  Endangered Plants
  Organic
   
  

  Biological pest control

  Biological control of pests and diseases is a method of controlling pests and diseases in agriculture that relies on natural predation rather than introduced ... > more
• Sustainability
  Air Pollution
  Environmental Science
  Air Quality
  Pollution
  Environmental Policy
   
  

  Urban planning

  Urban, city, or town planning is the discipline of land use planning which explores several aspects of the built and social environments of municipalities and communities. In the nineteenth ... > more
• Ecology Research
  Ecology
  Marine Biology
  Invasive Species
  Ecosystems
  Water
   
  

  Algal bloom

  An algal bloom or marine bloom or water bloom is a rapid increase in the population of algae in an aquatic system. Algal blooms may occur in freshwater as well as marine environments. Typically only ... > more
• Hurricanes and Cyclones
  Severe Weather
  Storms
  Weather
  Tornadoes
  Natural Disasters
   
  

  Galveston Hurricane of 1900

  The Galveston Hurricane of 1900 made landfall on the city of Galveston, Texas, on September 8, 1900. It had estimated winds of 135 miles per hour (215 km/h) at landfall, making it a Category 4 storm ... > more
• Acid Rain
  Landslides
  Ecology
  Environmental Issues
  Air Pollution
  Geochemistry
   

  Humus

  Humus is a complex organic substance resulting from the breakdown of plant material in a process called humification. This process can occur naturally in soil, or in the production of compost. Humus ... > more
• Earthquakes
  Natural Disasters
  Tsunamis
  Oil Spills
  Geology
  Pollution
   
  

  1999 Izmit, Turkey Earthquake

  The Izmit earthquake with a magnitude of 7.4 which lasted for 45 seconds killed over 17,000 in northwestern Turkey on 17 August ... > more
• Severe Weather
  Weather
  Storms
  Floods
  Hurricanes and Cyclones
  Tornadoes
   
  

  Severe weather terminology (United States)

  This article describes severe weather terminology used by the U.S. National Weather Service. The National Weather Service has developed a multi-tier concept for forecasting all types of hazardous ... > more
• Air Quality
  Forest
  Global Warming
  Geochemistry
  Climate
  Pollution
   

  Activated carbon

  Activated carbon (also called activated charcoal) is the more general term which includes carbon material mostly derived from charcoal. It denotes a material which has an exceptionally high surface ... > more

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