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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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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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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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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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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 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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Questions concerning the production or use of electricity in a sustainable way.
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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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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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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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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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the sustainability aspects of domestic or commercial gardening: the cultivation of plants and fungi, landscaping and garden design.
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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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more sustainable alternative for a particular product or activity
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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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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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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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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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growing fish or other aquatic animals and plants together in one integrated system. The fish wastes provide nutrients for the plants and the plants filter the water. Additionally bacteria break down b…
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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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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.