Tundra Articles

• Sustainability
  Agriculture and Food
  Soil Types
  Organic
  Energy and the Environment
  Ecology
   

  Sustainable agriculture

  Sustainable agriculture integrates three main goals: environmental stewardship, farm profitability, and prosperous farming communities. Sustainable agriculture refers to the ability of a farm to ... > more
• Nuclear Energy
  Weapons Technology
  Energy and the Environment
  Renewable Energy
  Sports Science
  Physics
   
  

  Plutonium

  Plutonium is a radioactive, metallic, chemical element. It has the symbol Pu and the atomic number 94. It is the element used in most modern nuclear weapons. The most important, albeit not most ... > more
• Global Warming
  Forest
  Air Quality
  Climate
  Rainforests
  Geochemistry
   
  

  Carbon dioxide sink

  A carbon dioxide (CO2) sink is a carbon reservoir that is increasing in size, and is the opposite of a carbon "source". The main natural sinks are the oceans and plants and other organisms that use ... > 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
• Near-Earth Object Impacts
  Earth Science
  Geography
  Natural Disasters
  Geology
  Earthquakes
   
  

  Chicxulub Crater

  Chicxulub Crater is an ancient impact crater buried underneath the Yucatan peninsula, with its center located approximately underneath the town of Chicxulub, Yucatan, Mexico. Investigations suggest ... > more
• Recycling and Waste
  Hazardous Waste
  Environmental Science
  Environmental Issues
  Pollution
  Water
   
  

  Sewage treatment

  Sewage treatment is the process that removes the majority of the contaminants from waste-water or sewage and produces both a liquid effluent suitable for disposal to the natural environment and a ... > 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
• Global Warming
  Climate
  Environmental Issues
  Environmental Policy
  Environmental Science
  Weather
   
  

  Attribution of recent climate change

  Attribution of recent climate change is the effort to scientifically demonstrate which mechanisms are responsible for observed changes in the Earth's climate. The endeavor centers on the observed ... > more
• Alternative Fuels
  Graphene
  Spintronics
  Global Warming
  Attention Deficit Disorder
  Healthy Aging
   
  

  Nitrous oxide

  Nitrous oxide, also known as dinitrogen oxide or dinitrogen monoxide, is a chemical compound with chemical formula N2O. It is commonly known as laughing gas due to the exhilarating effects of ... > more
• Energy and the Environment
  Renewable Energy
  Solar Energy
  Geomagnetic Storms
  Environmental Science
  Sustainability
   
  

  Solar power

  Solar power (also knows as solar radiation or insolation) is energy from the sun. This energy, in the form of heat and light, supports all life on Earth, drives the Earth's climate and weather and is ... > more

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