A measure of the demand a person, population, or activity places on nature in order to produce the resources it consumes and to absorb the waste it generates, usually expressed as acres or hectares of productive land and water.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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ecology<\/p>\n<\/p>\n
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The study of the relationships between organisms and their environment.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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ecosystem<\/p>\n<\/p>\n
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A system of living organisms interacting with each other and their physical environment.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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endangered species<\/p>\n<\/p>\n
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A species considered to be facing a high risk of extinction in the wild in the near future.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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environmental ethics<\/p>\n<\/p>\n
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The branch of philosophy that studies the moral value of, and humans\u2019 ethical relationship to, the nonhuman world.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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environmental history<\/p>\n<\/p>\n
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The study of human relationships to the natural world through time.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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environmental justice<\/p>\n<\/p>\n
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The concept that access to a clean, healthy environment is a fundamental human right.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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life cycle assessment (LCA)<\/p>\n<\/p>\n
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A method for quantifying the total environmental impacts of a material, product, or building through all phases of its life from cradle to grave; also known as life cycle analysis.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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listing<\/p>\n<\/p>\n
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The addition of a species considered to be facing a high risk of extinction to a list of endangered species such as the international IUCN Red List or the lists mandated by the US Endangered Species Act.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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Kyoto Protocol<\/p>\n<\/p>\n
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An international treaty adopted in 1997 at the United Nations Framework Convention on Climate Change and expiring in 2012 which limited carbon dioxide emissions for those developed countries that signed it.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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succession<\/p>\n<\/p>\n
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Progressive change in species composition, structure, and ecosystem characteristics in a community, often in response to a disturbance,<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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threatened species<\/p>\n<\/p>\n
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A species considered to be likely to become endangered in the near future.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n \n
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trophic level<\/p>\n<\/p>\n
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The position a group of organisms with similar feeding function occupies in a food web.<\/p>\n<\/div>\n <\/div>\n <\/button>\n <\/div>\n\n \n
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