Mining Articles

• Caving
  Water
  Drought Research
  Archaeology
  Ecosystems
  Pollution
   
  

  Stalactite

  A stalactite or dripstone, is a type of speleothem that hangs from the ceiling or wall of limestone caves. Stalactites are formed from the deposition of calcium carbonate and other minerals, which is ... > more
• Global Warming
  Geochemistry
  Air Quality
  Forest
  Climate
  Earth Science
   
  

  Carbon cycle

  The carbon cycle is the biogeochemical cycle by which carbon is exchanged between the biosphere, geosphere, hydrosphere and atmosphere of the Earth. The cycle is usually thought of as four major ... > more
• Earthquakes
  Natural Disasters
  Tsunamis
  Wildfires
  Geography
  Severe Weather
   
  

  1906 San Francisco earthquake

  The San Francisco earthquake of 1906 was a major earthquake that struck San Francisco and the coast of northern California at 5:12am on Wednesday, April 18, ... > more
• Environmental Issues
  Water
  Geomagnetic Storms
  Pollution
  Geography
  Earth Science
   
  

  Rainbow

  A rainbow is an optical and meteorological phenomenon that causes a nearly continuous spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere. ... > more
• Marine Biology
  Oceanography
  Fish
  Geography
  Fisheries
  Extinction
   
  

  Dead zone (ecology)

  Dead zones are hypoxic (low-oxygen) areas in the world's oceans, the observed incidences of which have been increasing since oceanographers began noting them in the 1970s. The term could as well ... > more
• Sports Science
  Materials Science
  Inorganic Chemistry
  Chemistry
  Hurricanes and Cyclones
  Severe Weather
   
  

  Polytetrafluoroethylene

  Polytetrafluoroethylene (PTFE) is a fluoropolymer discovered by Roy J. Plunkett (1910–1994) of DuPont in 1938. It was introduced as a commercial product in 1946 and (in an example of a ... > more
• Fossils
  Environmental Policy
  Extinction
  Ice Ages
  Origin of Life
  Early Climate
   
  

  Cambrian

  The Cambrian is a major division of the geologic timescale that begins about 542 Ma (million years ago) at the end of the Proterozoic eon and ended about 488.3 Ma with the beginning of the Ordovician ... > more
• Air Quality
  Fossil Fuels
  Air Pollution
  Thermodynamics
  Energy and the Environment
  Alternative Fuels
   
  

  Combustion

  Combustion or burning is a complex sequence of chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames. ... > more
• Climate
  Global Warming
  Renewable Energy
  Sports Science
  Petroleum
  Fossil Fuels
   
  

  Methane

  Methane is a significant and plentiful fuel which is the principal component of natural gas. Burning one molecule of methane in the presence of oxygen releases one molecule of CO2 (carbon dioxide) ... > 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

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