Pollution Articles

• Energy and the Environment
  Alternative Fuels
  Renewable Energy
  Fuel Cells
  Batteries
  Fossil Fuels
   
  

  Fuel cell

  A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i.e. it produces ... > more
• Wind Energy
  Renewable Energy
  Energy and the Environment
  Environmental Science
  Energy Technology
  Energy Policy
   
  

  Wind power

  Wind power is the conversion of wind energy into more useful forms, such as electricity, using wind turbines. At the end of 2006, worldwide capacity of wind-powered generators was 73.9 gigawatts; ... > more
• Weather
  Tornadoes
  Severe Weather
  Geography
  Global Warming
  Environmental Issues
   
  

  Doppler radar

  Doppler radar uses the Doppler effect to measure the radial velocity of targets in the antenna's directional beam. The Doppler effect shifts the received frequency up or down based on the radial ... > more
• Earth Science
  Environmental Issues
  Global Warming
  Geomagnetic Storms
  Near-Earth Object Impacts
  Anthropology
   

  End of civilization

  The end of civilization or the end of the world are phrases used in reference to human extinction scenarios, doomsday events, and related hazards which occur on a global ... > more
• Renewable Energy
  Energy and the Environment
  Sports Science
  Nuclear Energy
  Healthy Aging
  Sports Medicine
   
  

  Chernobyl disaster

  The Chernobyl disaster was an accident at the Chernobyl Nuclear Power Plant on April 26, 1986 at 01:23 a.m., consisting of an explosion at the plant and subsequent radioactive contamination of the ... > more
• Climate
  Weather
  Atmosphere
  Geography
  Severe Weather
  Global Warming
   
  

  Atmospheric circulation

  Atmospheric circulation is the large-scale movement of air by which heat is distributed on the surface of the Earth. The wind belts and the jet streams girdling the planet are steered by three ... > more
• Global Warming
  Climate
  Environmental Policy
  Environmental Issues
  Environmental Science
  Energy and the Environment
   
  

  IPCC Fourth Assessment Report

  The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) is the fourth in a series of reports on climate change. Two of the three reports (Working groups I and II) have ... > more
• Global Warming
  Environmental Issues
  Climate
  Geomagnetic Storms
  Atmosphere
  Environmental Science
   
  

  Greenhouse effect

  The greenhouse effect is the process in which the emission of infrared radiation by the atmosphere warms a planet's surface. The name comes from an analogy with the warming of air inside a greenhouse ... > more
• Severe Weather
  Storms
  Tornadoes
  Weather
  Geography
  Water
   
  

  Supercell

  A supercell is a severe thunderstorm with a deep rotating updraft. Supercell thunderstorms are the largest, most severe class of single-cell thunderstorms. It has been argued that there are really ... > more
• Sun
  Geomagnetic Storms
  Solar Flare
  Renewable Energy
  Atmosphere
  Northern Lights
   
  

  Solar radiation

  Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other ... > more

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