Forest Articles

• Tornadoes
  Severe Weather
  Hurricanes and Cyclones
  Floods
  Natural Disasters
  Climate
   
  

  April 6-8, 2006 Tornado Outbreak

  The April 6-8, 2006 Tornado Outbreak was a major tornado outbreak in the Central and parts of the Southern United States that began on April 6, 2006 and continued until April 8 across at least 13 ... > more
• Ecology
  Biodiversity
  Environmental Policy
  Sustainability
  Rainforests
  Environmental Issues
   
  

  Conservation biology

  Conservation biology is the protection and management of biodiversity that uses principles and experiences from the biological sciences, from natural resource management, and from the social ... > more
• Water
  Weather
  Pollution
  Severe Weather
  Climate
  Environmental Issues
   
  

  Precipitation (meteorology)

  In meteorology, precipitation is any form of water that falls from the sky as part of the weather to the ground. This includes snow, rain, sleet, freezing rain, hail, and virga. Precipitation is a ... > more
• Ice Ages
  Global Warming
  Climate
  Nature of Water
  Oceanography
  Snow and Avalanches
   
  

  Ice age

  An ice age is a period of long-term reduction in the temperature of Earth's climate, resulting in an expansion of the continental ice sheets, polar ice sheets and mountain glaciers. Glaciologically, ... > more
• Nature
  Oceanography
  Ecology
  Marine Biology
  Earth Science
  Global Warming
   

  Ocean acidification

  Ocean acidification is the name given to the ongoing decrease in the pH of the Earth's oceans, caused by their uptake of anthropogenic carbon dioxide from the atmosphere. Between 1751 and 2004 ... > more
• Earth Science
  Geology
  Near-Earth Object Impacts
  Earthquakes
  Environmental Issues
  Geomagnetic Storms
   
  

  Earth

  Earth often referred to as the Earth, Terra, the World or Planet Earth, is the third planet in the solar system in terms of distance from the Sun, and the fifth largest. It is also the largest of its ... > 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
• Exotic Species
  Botany
  Nature
  Endangered Plants
  New Species
  Invasive Species
   
  

  Tamarix

  The genus Tamarix, known as tamarisk or (US) saltcedar, comprises about 50-60 species of deciduous or evergreen shrubs or small trees growing to 1-15 m in height and forming dense thickets, native to ... > more
• Desert
  Geography
  Water
  Environmental Issues
  Pollution
  Drought Research
   
  

  Desert

  In geography, a desert is a landscape form or region that receives very little precipitation. Generally deserts are defined as areas that receive an average annual precipitation of less than 250 mm ... > more
• Soil Types
  Organic
  Acid Rain
  Fungus
  Landslides
  Agriculture and Food
   

  Soil pH

  Soil pH is an indication of the alkalinity or acidity of soil. It is based on the measurement of pH, which is based in turn on the activity of hydrogen ions (H+) in a water or salt ... > more

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