Air Quality Articles

• Volcanoes
  Global Warming
  Severe Weather
  Weather
  Geography
  Storms
   

  Year Without a Summer

  The Year Without a Summer, also known as the Poverty Year and Eighteen hundred and froze to death, was 1816, in which severe summer climate abnormalities destroyed crops in Northern Europe, the ... > more
• Earthquakes
  Geology
  Earth Science
  Landslides
  Environmental Science
  Natural Disasters
   
  

  Geotechnical engineering

  Geotechnical engineering is concerned with the engineering properties of earth materials. Geotechnical engineers investigate the soil and bedrock below a site to confirm their engineering properties ... > more
• Energy and the Environment
  Electricity
  Renewable Energy
  Energy Technology
  Sustainability
  Solar Energy
   
  

  Hydroelectricity

  Hydroelectricity is electricity obtained from hydropower. Most hydroelectric power comes from the potential energy of dammed water driving a water turbine and generator. Less common variations make ... > more
• Ecology
  Agriculture and Food
  Sustainability
  Soil Types
  Ecology Research
  Nature
   

  Agroecology

  Agroecology is the science of applying ecological concepts and principles to the design, development, and management of sustainable agricultural systems. Agroecology is the science of sustainable ... > more
• Insects (including Butterflies)
  Trees
  Exotic Species
  Invasive Species
  Forest
  Zoology
   
  

  Gypsy moth

  The gypsy moth, Lymantria dispar, is a moth of European origin. Gypsy moth larvae prefer hardwoods, but may feed on several hundred different species of trees and shrubs. In the East the gypsy moth ... > more
• Tsunamis
  Natural Disasters
  Severe Weather
  Hurricanes and Cyclones
  Oceanography
  Weather
   
  

  Rogue wave (oceanography)

  Rogue waves, also known as freak waves, are relatively large and spontaneous ocean surface waves which can sink even large ships and ocean liners. In oceanography, they are more concisely defined as ... > more
• Fossils
  Rainforests
  Paleontology
  Ecology
  Life Sciences
  Biology
   
  

  Sponge

  The sponges or poriferansare animals of the phylum Porifera. They are primitive, sessile, mostly marine, waterdwelling filter feeders that pump water through their matrix to filter out particulates ... > more
• Geology
  Earthquakes
  Natural Disasters
  Earth Science
  Tsunamis
  Near-Earth Object Impacts
   
  

  Lithosphere

  The lithosphere is the solid outermost shell of a rocky planet. On the Earth, the lithosphere includes the crust and the uppermost layer of the mantle (the upper mantle or lower lithosphere) which is ... > more
• Weapons Technology
  Renewable Energy
  Energy and the Environment
  Physics
  Nuclear Energy
  Geomagnetic Storms
   
  

  Radioactive decay

  Radioactive decay is the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles (radiation). Decay is said to occur in the parent nucleus and produces a daughter ... > more
• Extinction
  Dinosaurs
  Endangered Animals
  Endangered Plants
  Fossils
  Early Climate
   
  

  Extinction event

  An extinction event (also extinction-level event, ELE) occurs when a large number of species die out in a relatively short period of time. Since life began on Earth, a number of major mass ... > more

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