Browse Reference Articles
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Radiant energy
Radiant energy is the energy of electromagnetic waves. The term is most commonly used in the fields of radiometry, solar energy, heating and lighting, but is also used less frequently in other fields ... > more -
Weapons Technology
Nuclear Energy
Renewable Energy
Energy and the Environment
Physics
Environmental Science
Effects of nuclear explosions
A nuclear explosion occurs as a result of the rapid release of energy from an uncontrolled nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading ... > more -
Natural gas
Natural gas, commonly referred to as gas, is a gaseous fossil fuel consisting primarily of methane. It is found in oil fields and natural gas fields, as well as—in smaller quantities—in ... > more -
Energy and the Environment
Solar Energy
Renewable Energy
Geomagnetic Storms
Environmental Science
Graphene
Solar cell
A solar cell (or a "photovoltaic" cell) is a device that converts photons from the sun (solar light) into electricity. In general, a solar cell that includes both solar and nonsolar sources of light ... > 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 -
Evapotranspiration
Evapotranspiration (ET) is the sum of evaporation and plant transpiration. Evaporation accounts for the movement of water to the air from sources such as the soil, canopy interception, and ... > more -
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 -
Renewable Energy
Hazardous Waste
Energy and the Environment
Recycling and Waste
Environmental Science
Environmental Issues
Radioactive waste
Radioactive waste is waste type containing radioactive chemical elements that does not have a practical purpose. It is sometimes the product of a nuclear process, such as nuclear fission. The ... > more -
Evaporation
Evaporation is one of the two forms of vaporization. It is the process whereby atoms or molecules in a liquid state (or solid state if the substance sublimes) gain sufficient energy to enter the ... > 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
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