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From Environmental Technology
==Ecological Footprint== en.wikipedia.org/wiki/Ecological_footprint Ecological footprint analysis approximates the amount of arable and agriculturally or ecologically productive land area it takes to sustain one human or group of humans, say in a family or city, based on their use of energy, food, water, building material and other consumables. It is a way of determining relative consumption for the purpose of educating people about their resource use and, sometimes, triggering them to change how they consume.
==Renewable Resources== http://www.rnrf.org/ The International Society of Arboriculture is a worldwide professional, scientific, and educational organization dedicated to fostering a greater appreciation for trees and to promoting research, technology, and the professional practice of arboriculture. The society is a dynamic medium through which arborists around the world share their experience and knowledge for the benefit of society.
==Environmental Sustainability== http://sedac.ciesin.columbia.edu/es/esi/ This website provides access to the 2005 Environmental Sustainability Index (ESI) report and underlying data. In addition, it provides an archive of the reports and data for the 2000, 2001, and 2002 versions of the ESI. The documents made available here provide in-depth details on the analytical framework, quantitative methodology, and data sources that underlie each edition of the ESI.
==Sustainable Development== http://www.un.org/esa/sustdev/natlinfo/natlinfo.htm National information includes information submitted annually in national reports by member States to the Commission on Sustainable Development. Also included are 2002 Country Profiles and 2002 National Assessment Reports prepared for the Johannesburg World Summit, as well as 1997 Country Profiles prepared for the Five-Year Review of the Earth Summit.
