Glossary of Green Terms
Atmospheric concentrations are the quantity of greenhouse gases relative to the global volume of the atmosphere, expressed in parts per million (ppm). Atmospheric concentrations are often cited for carbon dioxide (CO2) alone or for CO2 equivalents, in which case they are adjusted to reflect all greenhouse gases. Rising atmospheric concentrations can occur even with unchanged levels of annual greenhouse gas emissions.
warming potentials.
Ecosystem is the complex of plant, animal, fungal, and microorganism communities and their associated non-living environment interacting as an ecological unit. Ecosystems have no fixed boundaries; instead, their parameters are set according to the scientific, management, or policy question being examined. Depending upon the purpose of analysis, a single lake, a watershed, or an entire region could be considered an ecosystem.
Eco-friendly: Little or no impact on the native eco-system.
Ecological Footprint: The area of land and water needed to produce the resources to entirely sustain a human population and absorb its waste products with prevailing technology. The concept of an ecological footprint is used as a resource management and community-planning tool.
Embodied Energy: Total energy used to create a product, including the energy used in mining or harvesting, processing, fabricating, and transporting the product.
Emissions are pollutants released into the air or waterways from industrial processes, households or transportation vehicles. Air emissions pertain to atmospheric air pollution; water emissions refer to pollutants released into waterways.
Energy Efficiency: Ratio of energy output of a conversion process or of a system to its energy input.
Energy Star: A joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices.(http://www.energystar.gov/)
Fuel cycle refers to the total life of a fuel in all its uses and forms. For example, the fuel cycle of coal is extraction; transportation; combustion; air emissions, and ash removal, transportation and disposal.
Geothermal Energy: Heat that comes from the earth.
Green can mean anything from recycled to compostable. MyGreenGSB includes one or more of the following qualities when we call a product green: biodegradable or compostable; made of 100% recycled content or contains recycled content; saves energy; nontoxic; reusable or represents a greener alternative; emits low VOCs (volatile organic compounds) or CFCs (Chlorofluorocarbons); uses renewable resources or is rechargeable; the manufacturing company uses green methods in the factory; the product is certified as such by an established third party.
Greenhouse effect is the progressive, gradual warming of the earth's atmospheric temperature, caused by the insulating effect of carbon dioxide and other greenhouse gases that have proportionately increased in the atmosphere. The greenhouse effect disturbs the way the Earth’s climate maintains the balance between incoming and outgoing energy by allowing short-wave radiation from the sun to penetrate through to warm the earth, but preventing the resulting long-wave radiation from escaping back into the atmosphere.
Greenhouse gases include the common gases of carbon dioxide and water vapor, but also rarer gases such as methane and chlorofluorocarbons (CFCs) whose properties relate to the transmission or reflection of different types of radiation. The increase in such gases in the atmosphere, which contributes to global warming, is a result of the burning of fossil fuels, the emissions of pollutants into the atmosphere, and deforestation.
Intergovernmental Panel on Climate Change (IPCC). An organisation established in 1988 by the World Meteorological Organization and the United Nations Environment Programme to provide the most widely accepted information available about climate change. The IPCC does not conduct new research or monitor climate-related data. Its mandate is to assess existing data and to produce balanced and objective publications. For more information see Intergovernmental Panel on Climate Change (
LEED - An acronym for
Sustainable Sites
Water Efficiency
Energy and Atmosphere
Material Resources
Indoor Environmental Quality
Innovation and Design Process
Buildings evaluated by LEED are rated as certified, silver, gold, or platinum. There are a total of 69 LEED credits available in the six categories: 26 credits are required to attain the most basic level of LEED certification; 33 to 38 credits are needed for Silver; 39 to 51 credits for Gold; 52 to 69 credits for the Platinum rating.
Non-renewable Energy Resources Energy resources that cannot be restored or replenished by natural processes and therefore are depleted through use. Commonly used non-renewable energy resources include coal, oil, natural gas, and uranium.
Ozone at the ground level is a form of air pollution that is produced when nitrogen oxides and hydrocarbons react in sunlight. It is not to be confused with stratospheric ozone, which is found 9 to 18 miles high in the Earth’s atmosphere and protects people from harmful radiation from the sun. Ground-level ozone pollution, or smog, is mainly a problem during hot summer days.
