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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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using materials that would otherwise be waste to manufacture new materials. For questions specifically on [upcycling] use that tag, for questions on [reuse] use that tag.
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the sustainable use of energy, through efficiency and renewables. Use this tag for questions on energy in general. For questions on a specific energy type see [electricity], [heating] or [light]. For …
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Electric energy produced from sunlight. This could be via semiconductors, in [photovoltaics]; or through the concentration of solar heat to drive a turbine, as in concentrating solar power [solar-ther…
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substance consumed to provide nutritional support for humans and animals. Use this tag for questions on the sustainability aspects of food in general. See also [meat],[fish],[cooking]
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the process of creating compost: organic matter that has been decomposed and recycled as a fertilizer and soil amendment. For composting with worms see [vermicomposting], for anaerobic composting with…
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The percentage ratio of energy produced to energy supplied to a system; or a measure of minimum energy required relative to energy actually consumed; or a measure of relative energy consumed to provid…
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Materials, which the initial user wants to dispose. "The term can be described as subjective and inaccurate because waste to one person is not waste to another".
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a dwelling-place used as a permanent or semi-permanent residence for an individual, family, household or several families in a tribe.
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Questions concerning the production or use of electricity in a sustainable way.
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describes all effects (positive or negative) of the production, consumption and/or disposal of a product, service, policy, or project on the environment.
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warming a space for human comfort. Use this tag for questions on space heating and central heating. For questions about heat for preparing food use the [cooking] tag. For heating water use…
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Questions regarding sustainable use of water, or water's impact on sustainability in general. For questions on [waste-water], [greywater], [seawater], [water-footprint] or [virtual-water] please use …
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any of a wide range of synthetic or semi-synthetic organic solids that are moldable. They are usually synthetic, most commonly derived from petrochemicals, but many are partially…
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Giving materials and objects an additional life by using them again, rather than [recycling] or discarding them.
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the sustainability aspects of domestic or commercial gardening: the cultivation of plants and fungi, landscaping and garden design.
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a measure of the total amount of greenhouse gas emissions produced directly and indirectly by a person, an organisation, an event or a product.
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a resource that can be created or used over and over again without depleting the materials from which it is made.
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methods for producing electricity, including inputs (fuel, land, water, air) and byproducts (heat, waste, emissions)
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moving people or freight from one place to another. This includes use of cars, trucks, buses, aircraft, watercraft, as well as non-fuel-intensive transportation. For questions specifically about cars …
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a measure of how much land and ocean area is required to sustain a particular consumption pattern. This is related to, but not the same as [environmental-impact]
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DIY (Do-It-Yourself) and home improvements: the sustainability issues around mending and improving your home through repairs, renovation, carpentry, plumbing and other building activities that you do …
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a method for quantifying the impacts of a product, process, or service over its entire supply chain. Carbon, energy and water footprinting are well-known subsets of LCA.
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Material, usually derived from wood and produced into thin sheets. Sustainability of using paper: possible recycling methods or ways to minimize paper waste.
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any addition of harmful substances or products in the environment (air, water, soil or food). For questions specifically about [air-polution], [greenhouse-gas-emissions] or [toxic-chemicals] please u…
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more sustainable alternative for a particular product or activity
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The conversion of the kinetic energy from moving air into usable electrical energy. This is almost always through three-blade horizontal-axis wind turbines, though there are variants that include two …
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Solar panels that convert light directly to electricity. For questions on using sunlight to to heat water use [solar-thermal]
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automobile, mainly used for transporting people For questions also about other types of vehicles or about transport in general use the [vehicle] or [transport] tags respectively.
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a school of sustainable agriculture modeled on observations of how natural ecosystems work. It is founded on three principles: care of ecosystems, care of people, and closing cycles so that waste is r…
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Questions that define the concept of sustainability by discussing its relationship with other related concepts
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storage devices for electrical energy. Use this tag for questions about selecting and using the (most sustainable) various battery technologies for a particular application as well as questions about …
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materials and products used for the construction and repair of buildings. For questions about building as a process use the [construction] tag
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The management of fresh and usable water resources, desalination, waste-water handling and purification.
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multicellular organism of the kingdom Plantae, such as trees, bushes, herbs, ferns and mosses. For questions about growing, keeping, or using plants in a sustainable way or to improve the sustainabili…
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pest management or control refers to the active control of (the numbers of) a species that is regarded as a pest. Pests can be [plants], [insects] or other [animals] and are usually unwanted because o…