Recycling and Waste Articles

• Ozone Holes
  Environmental Issues
  Air Quality
  Atmosphere
  Air Pollution
  Pollution
   
  

  Ozone depletion

  Ozone depletion describes the observed loss of ozone in the stratosphere over the past 50 years. It encompasses both a steady thinning of the ozone layer at mid-latitudes and its catastrophic ... > more
• Apes
  Human Evolution
  Early Humans
  Rainforests
  Healthy Aging
  Endangered Animals
   
  

  Chimpanzee

  Chimpanzee, often shortened to chimp, is the common name for the two extant species in the genus Pan. The better known chimpanzee is Pan troglodytes, the Common Chimpanzee, living primarily in West, ... > more
• Geography
  Tundra
  Mammals
  Wild Animals
  Nature
  Animals
   
  

  Reindeer

  The reindeer, known as caribou when wild in North America, is an Arctic and Subarctic-dwelling deer. About 1 million live in Alaska, and a comparable number live in northern Canada. There are an ... > more
• Tundra
  Geography
  Animals
  Mammals
  Endangered Animals
  Fish
   
  

  Arctic fox

  The Arctic fox, also known as the polar fox, is a small fox native to cold Arctic regions of the Northern Hemisphere. It is common in all three tundra biomes. The Arctic fox has evolved to live in ... > more
• Global Warming
  Climate
  Environmental Issues
  Early Climate
  Nature
  Environmental Policy
   
  

  Global warming

  Global warming refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. The global average air temperature ... > more
• Alternative Fuels
  Fossil Fuels
  Fuel Cells
  Energy and the Environment
  Vehicles
  Petroleum
   
  

  Flexible-fuel vehicle

  A flexible-fuel vehicle (FFV) or dual-fuel vehicle (also sometimes called only flex-fuel) is an automobile that can typically alternate between two sources of fuel. A common example is a vehicle that ... > more
• Water
  Marine Biology
  Ecosystems
  Floods
  Ecology
  Environmental Issues
   
  

  Estuary

  An estuary is a semi-enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries are often associated with high rates of ... > more
• Ozone Holes
  Environmental Issues
  Atmosphere
  Air Quality
  Air Pollution
  Pollution
   
  

  Ozone layer

  The ozone layer is the part of the Earth's atmosphere which contains relatively high concentrations of ozone (O3). "Relatively high" means a few parts per million - much higher than the ... > more
• Global Warming
  Nature of Water
  Ice Ages
  Climate
  Oceanography
  Snow and Avalanches
   
  

  Ice shelf

  An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface, typically in Antarctica or Greenland. The boundary ... > more
• Geology
  Volcanoes
  Natural Disasters
  Earth Science
  Earthquakes
  Tsunamis
   
  

  Mantle plume

  A mantle plume is an upwelling of abnormally hot rock within the Earth's mantle. As the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of ... > more

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