Green Terms

Glossary of Green Terms




Corporate Average Fuel Economy

Carbon Dioxide is a colorless, odorless noncombustible gas with the formula CO2 that is present in the atmosphere. It is formed by the combustion of carbon and carbon compounds (such as fossil fuels and biomass), by respiration, which is a slow combustion in animals and plants, and by the gradual oxidation of organic matter in the soil. Source: U.S. Department of Energy / Office of Energy Efficiency and Renewable Energy

A carbon footprint is a measure of the impact human activities have on the environment in terms of the amount of greenhouse gases produced, measured in units of carbon dioxide. Source: Carbon Footprint

Carbon Offset: The act of neutralizing greenhouse gas emissions through emissions trading is called carbon offsetting.

Also see: Electromagnetic Radiation, EMFs


CFC: see Chlorofluorocarbon


CFC: see Chlorofluorocarbon


CFL: see Compact Fluorescent Lamp

Chlorofluorocarbon is a family of chemicals composed primarily of carbon, hydrogen, chlorine and fluorine whose principal applications are as refrigerants and industrial cleansers and whose principal drawback is the tendency to destroy the Earth

Cialis (generic name tadalafil) is a virility drug used to treat erectile dysfunction in men.

Circulating Fluidized Bed Combustion Technology is a type of furnace or reactor in which the emission of sulfur compounds is lowered by the addition of crushed limestone in the fluidized bed, thus obviating the need for much of the expensive stack gas clean-up equipment. The particles are collected and recirculated, after passing through a conventional bed, and cooled by boiler internals. CFB technology is recognized by the U.S. Department of Energy as a clean-coal technology. CFB technology has strong environmental performance, and a record of dependable, cost-effective service. CFB boilers are very flexible and can utilize a wide range of fuels, including run of mine coal, waste coal and biomass. Source: U.S. Department of Energy Office of Energy Efficiency and Renewable Energy

A company or other organizational unit that produces electricity from sources that are thought to be environmentally cleaner than traditional sources. Clean, or green, power is usually defined as power from renewable energy that comes from wind, solar, biomass energy, etc. There are various definitions of clean resources. Some definitions include power produced from waste-to-energy and wood-fired plants that may still produce significant air emissions. Some states have defined certain local resources as clean that other states would not consider clean. For example, the state of Texas has defined power from efficient natural gas-fired power plants as clean. Some northwest states include power from large hydropower projects as clean although these projects damage fish populations. Various states have disclosure and labeling requirement for generation source and air emissions that assist customers in comparing electricity characteristics other than price. This allows customers to decide for themselves what they consider to be "clean." The federal government is also exploring this issue. Source: U.S. Department of Energy / Office of Energy Efficiency and Renewable Energy

Climate change refers to any significant change in measures of climate (such as temperature, precipitation or wind) lasting for an extended period (decades or longer). Climate change may result from natural factors, natural processes or human activities.

Coal is a burnable carbonaceous rock that contains large amounts of carbon. It is a fossil fuel extracted from the ground by mining. Coal is the largest source of energy for the generation of electricity worldwide.
Also see: Biofuels, Fossil Fuel

Compact fluorescent lamps combine the energy efficiency of fluorescent lighting with the convenience and popularity of incandescent lamps. CFLs can replace incandescents that are roughly three-to-four times their wattage, saving up to 75 percent of the initial lighting energy. Although CFLs cost 3-10 times times more than comparable incandescent bulbs, they last 6-15 times as long (6,000-15,000 hours). Source: U.S. Department of Energy Office of Energy Efficiency and Renewable Energy

Conservation is the preservation of resources through efficient and careful use. Source: U.S. Army Corps of Engineers

Corporate Average Fuel Economy (CAFE) is a way to measure the fuel economy of specific manufacturers

Also see: Petroleum

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